78407280

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:404

約数の個数: 240

約数和(自身を含む): 308265984

約数和(自身を除く): 229858704

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, 331, 336, 360, 376, 420, 423, 470, 504, 560, 564, 630, 658, 662, 705, 720, 752, 840, 846, 940, 987, 993, 1008, 1128, 1260, 1316, 1324, 1410, 1645, 1655, 1680, 1692, 1880, 1974, 1986, 2115, 2256, 2317, 2520, 2632, 2648, 2820, 2961, 2979, 3290, 3310, 3384, 3760, 3948, 3972, 4230, 4634, 4935, 4965, 5040, 5264, 5296, 5640, 5922, 5958, 6580, 6620, 6768, 6951, 7896, 7944, 8460, 9268, 9870, 9930, 11280, 11585, 11844, 11916, 13160, 13240, 13902, 14805, 14895, 15557, 15792, 15888, 16920, 18536, 19740, 19860, 20853, 23170, 23688, 23832, 26320, 26480, 27804, 29610, 29790, 31114, 33840, 34755, 37072, 39480, 39720, 41706, 46340, 46671, 47376, 47664, 55608, 59220, 59580, 62228, 69510, 77785, 78960, 79440, 83412, 92680, 93342, 104265, 108899, 111216, 118440, 119160, 124456, 139020, 140013, 155570, 166824, 185360, 186684, 208530, 217798, 233355, 236880, 238320, 248912, 278040, 280026, 311140, 326697, 333648, 373368, 417060, 435596, 466710, 544495, 556080, 560052, 622280, 653394, 700065, 746736, 834120, 871192, 933420, 980091, 1088990, 1120104, 1244560, 1306788, 1400130, 1633485, 1668240, 1742384, 1866840, 1960182, 2177980, 2240208, 2613576, 2800260, 3266970, 3733680, 3920364, 4355960, 4900455, 5227152, 5600520, 6533940, 7840728, 8711920, 9800910, 11201040, 13067880, 15681456, 19601820, 26135760, 39203640, 78407280]

約数ペア:

[(1, 78407280), (2, 39203640), (3, 26135760), (4, 19601820), (5, 15681456), (6, 13067880), (7, 11201040), (8, 9800910), (9, 8711920), (10, 7840728), (12, 6533940), (14, 5600520), (15, 5227152), (16, 4900455), (18, 4355960), (20, 3920364), (21, 3733680), (24, 3266970), (28, 2800260), (30, 2613576), (35, 2240208), (36, 2177980), (40, 1960182), (42, 1866840), (45, 1742384), (47, 1668240), (48, 1633485), (56, 1400130), (60, 1306788), (63, 1244560), (70, 1120104), (72, 1088990), (80, 980091), (84, 933420), (90, 871192), (94, 834120), (105, 746736), (112, 700065), (120, 653394), (126, 622280), (140, 560052), (141, 556080), (144, 544495), (168, 466710), (180, 435596), (188, 417060), (210, 373368), (235, 333648), (240, 326697), (252, 311140), (280, 280026), (282, 278040), (315, 248912), (329, 238320), (331, 236880), (336, 233355), (360, 217798), (376, 208530), (420, 186684), (423, 185360), (470, 166824), (504, 155570), (560, 140013), (564, 139020), (630, 124456), (658, 119160), (662, 118440), (705, 111216), (720, 108899), (752, 104265), (840, 93342), (846, 92680), (940, 83412), (987, 79440), (993, 78960), (1008, 77785), (1128, 69510), (1260, 62228), (1316, 59580), (1324, 59220), (1410, 55608), (1645, 47664), (1655, 47376), (1680, 46671), (1692, 46340), (1880, 41706), (1974, 39720), (1986, 39480), (2115, 37072), (2256, 34755), (2317, 33840), (2520, 31114), (2632, 29790), (2648, 29610), (2820, 27804), (2961, 26480), (2979, 26320), (3290, 23832), (3310, 23688), (3384, 23170), (3760, 20853), (3948, 19860), (3972, 19740), (4230, 18536), (4634, 16920), (4935, 15888), (4965, 15792), (5040, 15557), (5264, 14895), (5296, 14805), (5640, 13902), (5922, 13240), (5958, 13160), (6580, 11916), (6620, 11844), (6768, 11585), (6951, 11280), (7896, 9930), (7944, 9870), (8460, 9268)]