256588080

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{937}}^1$

素因数の和:1123

約数の個数: 160

約数和(自身を含む): 915608064

約数和(自身を除く): 659019984

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 163, 168, 210, 240, 280, 326, 336, 420, 489, 560, 652, 815, 840, 937, 978, 1141, 1304, 1630, 1680, 1874, 1956, 2282, 2445, 2608, 2811, 3260, 3423, 3748, 3912, 4564, 4685, 4890, 5622, 5705, 6520, 6559, 6846, 7496, 7824, 9128, 9370, 9780, 11244, 11410, 13040, 13118, 13692, 14055, 14992, 17115, 18256, 18740, 19560, 19677, 22488, 22820, 26236, 27384, 28110, 32795, 34230, 37480, 39120, 39354, 44976, 45640, 52472, 54768, 56220, 65590, 68460, 74960, 78708, 91280, 98385, 104944, 112440, 131180, 136920, 152731, 157416, 196770, 224880, 262360, 273840, 305462, 314832, 393540, 458193, 524720, 610924, 763655, 787080, 916386, 1069117, 1221848, 1527310, 1574160, 1832772, 2138234, 2290965, 2443696, 3054620, 3207351, 3665544, 4276468, 4581930, 5345585, 6109240, 6414702, 7331088, 8552936, 9163860, 10691170, 12218480, 12829404, 16036755, 17105872, 18327720, 21382340, 25658808, 32073510, 36655440, 42764680, 51317616, 64147020, 85529360, 128294040, 256588080]

約数ペア:

[(1, 256588080), (2, 128294040), (3, 85529360), (4, 64147020), (5, 51317616), (6, 42764680), (7, 36655440), (8, 32073510), (10, 25658808), (12, 21382340), (14, 18327720), (15, 17105872), (16, 16036755), (20, 12829404), (21, 12218480), (24, 10691170), (28, 9163860), (30, 8552936), (35, 7331088), (40, 6414702), (42, 6109240), (48, 5345585), (56, 4581930), (60, 4276468), (70, 3665544), (80, 3207351), (84, 3054620), (105, 2443696), (112, 2290965), (120, 2138234), (140, 1832772), (163, 1574160), (168, 1527310), (210, 1221848), (240, 1069117), (280, 916386), (326, 787080), (336, 763655), (420, 610924), (489, 524720), (560, 458193), (652, 393540), (815, 314832), (840, 305462), (937, 273840), (978, 262360), (1141, 224880), (1304, 196770), (1630, 157416), (1680, 152731), (1874, 136920), (1956, 131180), (2282, 112440), (2445, 104944), (2608, 98385), (2811, 91280), (3260, 78708), (3423, 74960), (3748, 68460), (3912, 65590), (4564, 56220), (4685, 54768), (4890, 52472), (5622, 45640), (5705, 44976), (6520, 39354), (6559, 39120), (6846, 37480), (7496, 34230), (7824, 32795), (9128, 28110), (9370, 27384), (9780, 26236), (11244, 22820), (11410, 22488), (13040, 19677), (13118, 19560), (13692, 18740), (14055, 18256), (14992, 17115)]