1981708680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{29863}}^1$

素因数の和:29963

約数の個数: 128

約数和(自身を含む): 6880665600

約数和(自身を除く): 4898956920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 79, 84, 105, 120, 140, 158, 168, 210, 237, 280, 316, 395, 420, 474, 553, 632, 790, 840, 948, 1106, 1185, 1580, 1659, 1896, 2212, 2370, 2765, 3160, 3318, 4424, 4740, 5530, 6636, 8295, 9480, 11060, 13272, 16590, 22120, 29863, 33180, 59726, 66360, 89589, 119452, 149315, 179178, 209041, 238904, 298630, 358356, 418082, 447945, 597260, 627123, 716712, 836164, 895890, 1045205, 1194520, 1254246, 1672328, 1791780, 2090410, 2359177, 2508492, 3135615, 3583560, 4180820, 4718354, 5016984, 6271230, 7077531, 8361640, 9436708, 11795885, 12542460, 14155062, 16514239, 18873416, 23591770, 25084920, 28310124, 33028478, 35387655, 47183540, 49542717, 56620248, 66056956, 70775310, 82571195, 94367080, 99085434, 132113912, 141550620, 165142390, 198170868, 247713585, 283101240, 330284780, 396341736, 495427170, 660569560, 990854340, 1981708680]

約数ペア:

[(1, 1981708680), (2, 990854340), (3, 660569560), (4, 495427170), (5, 396341736), (6, 330284780), (7, 283101240), (8, 247713585), (10, 198170868), (12, 165142390), (14, 141550620), (15, 132113912), (20, 99085434), (21, 94367080), (24, 82571195), (28, 70775310), (30, 66056956), (35, 56620248), (40, 49542717), (42, 47183540), (56, 35387655), (60, 33028478), (70, 28310124), (79, 25084920), (84, 23591770), (105, 18873416), (120, 16514239), (140, 14155062), (158, 12542460), (168, 11795885), (210, 9436708), (237, 8361640), (280, 7077531), (316, 6271230), (395, 5016984), (420, 4718354), (474, 4180820), (553, 3583560), (632, 3135615), (790, 2508492), (840, 2359177), (948, 2090410), (1106, 1791780), (1185, 1672328), (1580, 1254246), (1659, 1194520), (1896, 1045205), (2212, 895890), (2370, 836164), (2765, 716712), (3160, 627123), (3318, 597260), (4424, 447945), (4740, 418082), (5530, 358356), (6636, 298630), (8295, 238904), (9480, 209041), (11060, 179178), (13272, 149315), (16590, 119452), (22120, 89589), (29863, 66360), (33180, 59726)]