391125420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7219}}^1$

素因数の和:7284

約数の個数: 144

約数和(自身を含む): 1387626240

約数和(自身を除く): 996500820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 43, 45, 60, 63, 70, 84, 86, 90, 105, 126, 129, 140, 172, 180, 210, 215, 252, 258, 301, 315, 387, 420, 430, 516, 602, 630, 645, 774, 860, 903, 1204, 1260, 1290, 1505, 1548, 1806, 1935, 2580, 2709, 3010, 3612, 3870, 4515, 5418, 6020, 7219, 7740, 9030, 10836, 13545, 14438, 18060, 21657, 27090, 28876, 36095, 43314, 50533, 54180, 64971, 72190, 86628, 101066, 108285, 129942, 144380, 151599, 202132, 216570, 252665, 259884, 303198, 310417, 324855, 433140, 454797, 505330, 606396, 620834, 649710, 757995, 909594, 931251, 1010660, 1241668, 1299420, 1515990, 1552085, 1819188, 1862502, 2172919, 2273985, 2793753, 3031980, 3104170, 3725004, 4345838, 4547970, 4656255, 5587506, 6208340, 6518757, 8691676, 9095940, 9312510, 10864595, 11175012, 13037514, 13968765, 18625020, 19556271, 21729190, 26075028, 27937530, 32593785, 39112542, 43458380, 55875060, 65187570, 78225084, 97781355, 130375140, 195562710, 391125420]

約数ペア:

[(1, 391125420), (2, 195562710), (3, 130375140), (4, 97781355), (5, 78225084), (6, 65187570), (7, 55875060), (9, 43458380), (10, 39112542), (12, 32593785), (14, 27937530), (15, 26075028), (18, 21729190), (20, 19556271), (21, 18625020), (28, 13968765), (30, 13037514), (35, 11175012), (36, 10864595), (42, 9312510), (43, 9095940), (45, 8691676), (60, 6518757), (63, 6208340), (70, 5587506), (84, 4656255), (86, 4547970), (90, 4345838), (105, 3725004), (126, 3104170), (129, 3031980), (140, 2793753), (172, 2273985), (180, 2172919), (210, 1862502), (215, 1819188), (252, 1552085), (258, 1515990), (301, 1299420), (315, 1241668), (387, 1010660), (420, 931251), (430, 909594), (516, 757995), (602, 649710), (630, 620834), (645, 606396), (774, 505330), (860, 454797), (903, 433140), (1204, 324855), (1260, 310417), (1290, 303198), (1505, 259884), (1548, 252665), (1806, 216570), (1935, 202132), (2580, 151599), (2709, 144380), (3010, 129942), (3612, 108285), (3870, 101066), (4515, 86628), (5418, 72190), (6020, 64971), (7219, 54180), (7740, 50533), (9030, 43314), (10836, 36095), (13545, 28876), (14438, 27090), (18060, 21657)]