20901580560

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{88237}}^1$

素因数の和:88310

約数の個数: 240

約数和(自身を含む): 81930041856

約数和(自身を除く): 61028461296

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 47, 48, 56, 60, 63, 70, 72, 80, 84, 90, 94, 105, 112, 120, 126, 140, 141, 144, 168, 180, 188, 210, 235, 240, 252, 280, 282, 315, 329, 336, 360, 376, 420, 423, 470, 504, 560, 564, 630, 658, 705, 720, 752, 840, 846, 940, 987, 1008, 1128, 1260, 1316, 1410, 1645, 1680, 1692, 1880, 1974, 2115, 2256, 2520, 2632, 2820, 2961, 3290, 3384, 3760, 3948, 4230, 4935, 5040, 5264, 5640, 5922, 6580, 6768, 7896, 8460, 9870, 11280, 11844, 13160, 14805, 15792, 16920, 19740, 23688, 26320, 29610, 33840, 39480, 47376, 59220, 78960, 88237, 118440, 176474, 236880, 264711, 352948, 441185, 529422, 617659, 705896, 794133, 882370, 1058844, 1235318, 1323555, 1411792, 1588266, 1764740, 1852977, 2117688, 2470636, 2647110, 3088295, 3176532, 3529480, 3705954, 3970665, 4147139, 4235376, 4941272, 5294220, 5558931, 6176590, 6353064, 7058960, 7411908, 7941330, 8294278, 9264885, 9882544, 10588440, 11117862, 12353180, 12441417, 12706128, 14823816, 15882660, 16588556, 18529770, 20735695, 21176880, 22235724, 24706360, 24882834, 27794655, 29029973, 29647632, 31765320, 33177112, 37059540, 37324251, 41471390, 44471448, 49412720, 49765668, 55589310, 58059946, 62207085, 63530640, 66354224, 74119080, 74648502, 82942780, 87089919, 88942896, 99531336, 111178620, 116119892, 124414170, 145149865, 148238160, 149297004, 165885560, 174179838, 186621255, 199062672, 222357240, 232239784, 248828340, 261269757, 290299730, 298594008, 331771120, 348359676, 373242510, 435449595, 444714480, 464479568, 497656680, 522539514, 580599460, 597188016, 696719352, 746485020, 870899190, 995313360, 1045079028, 1161198920, 1306348785, 1393438704, 1492970040, 1741798380, 2090158056, 2322397840, 2612697570, 2985940080, 3483596760, 4180316112, 5225395140, 6967193520, 10450790280, 20901580560]

約数ペア:

[(1, 20901580560), (2, 10450790280), (3, 6967193520), (4, 5225395140), (5, 4180316112), (6, 3483596760), (7, 2985940080), (8, 2612697570), (9, 2322397840), (10, 2090158056), (12, 1741798380), (14, 1492970040), (15, 1393438704), (16, 1306348785), (18, 1161198920), (20, 1045079028), (21, 995313360), (24, 870899190), (28, 746485020), (30, 696719352), (35, 597188016), (36, 580599460), (40, 522539514), (42, 497656680), (45, 464479568), (47, 444714480), (48, 435449595), (56, 373242510), (60, 348359676), (63, 331771120), (70, 298594008), (72, 290299730), (80, 261269757), (84, 248828340), (90, 232239784), (94, 222357240), (105, 199062672), (112, 186621255), (120, 174179838), (126, 165885560), (140, 149297004), (141, 148238160), (144, 145149865), (168, 124414170), (180, 116119892), (188, 111178620), (210, 99531336), (235, 88942896), (240, 87089919), (252, 82942780), (280, 74648502), (282, 74119080), (315, 66354224), (329, 63530640), (336, 62207085), (360, 58059946), (376, 55589310), (420, 49765668), (423, 49412720), (470, 44471448), (504, 41471390), (560, 37324251), (564, 37059540), (630, 33177112), (658, 31765320), (705, 29647632), (720, 29029973), (752, 27794655), (840, 24882834), (846, 24706360), (940, 22235724), (987, 21176880), (1008, 20735695), (1128, 18529770), (1260, 16588556), (1316, 15882660), (1410, 14823816), (1645, 12706128), (1680, 12441417), (1692, 12353180), (1880, 11117862), (1974, 10588440), (2115, 9882544), (2256, 9264885), (2520, 8294278), (2632, 7941330), (2820, 7411908), (2961, 7058960), (3290, 6353064), (3384, 6176590), (3760, 5558931), (3948, 5294220), (4230, 4941272), (4935, 4235376), (5040, 4147139), (5264, 3970665), (5640, 3705954), (5922, 3529480), (6580, 3176532), (6768, 3088295), (7896, 2647110), (8460, 2470636), (9870, 2117688), (11280, 1852977), (11844, 1764740), (13160, 1588266), (14805, 1411792), (15792, 1323555), (16920, 1235318), (19740, 1058844), (23688, 882370), (26320, 794133), (29610, 705896), (33840, 617659), (39480, 529422), (47376, 441185), (59220, 352948), (78960, 264711), (88237, 236880), (118440, 176474)]