20410380

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:357

約数の個数: 120

約数和(自身を含む): 65740752

約数和(自身を除く): 45330372

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 43, 45, 54, 60, 81, 86, 90, 108, 129, 135, 162, 172, 180, 215, 258, 270, 293, 324, 387, 405, 430, 516, 540, 586, 645, 774, 810, 860, 879, 1161, 1172, 1290, 1465, 1548, 1620, 1758, 1935, 2322, 2580, 2637, 2930, 3483, 3516, 3870, 4395, 4644, 5274, 5805, 5860, 6966, 7740, 7911, 8790, 10548, 11610, 12599, 13185, 13932, 15822, 17415, 17580, 23220, 23733, 25198, 26370, 31644, 34830, 37797, 39555, 47466, 50396, 52740, 62995, 69660, 75594, 79110, 94932, 113391, 118665, 125990, 151188, 158220, 188985, 226782, 237330, 251980, 340173, 377970, 453564, 474660, 566955, 680346, 755940, 1020519, 1133910, 1360692, 1700865, 2041038, 2267820, 3401730, 4082076, 5102595, 6803460, 10205190, 20410380]

約数ペア:

[(1, 20410380), (2, 10205190), (3, 6803460), (4, 5102595), (5, 4082076), (6, 3401730), (9, 2267820), (10, 2041038), (12, 1700865), (15, 1360692), (18, 1133910), (20, 1020519), (27, 755940), (30, 680346), (36, 566955), (43, 474660), (45, 453564), (54, 377970), (60, 340173), (81, 251980), (86, 237330), (90, 226782), (108, 188985), (129, 158220), (135, 151188), (162, 125990), (172, 118665), (180, 113391), (215, 94932), (258, 79110), (270, 75594), (293, 69660), (324, 62995), (387, 52740), (405, 50396), (430, 47466), (516, 39555), (540, 37797), (586, 34830), (645, 31644), (774, 26370), (810, 25198), (860, 23733), (879, 23220), (1161, 17580), (1172, 17415), (1290, 15822), (1465, 13932), (1548, 13185), (1620, 12599), (1758, 11610), (1935, 10548), (2322, 8790), (2580, 7911), (2637, 7740), (2930, 6966), (3483, 5860), (3516, 5805), (3870, 5274), (4395, 4644)]