678630410

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1871}}^1$

素因数の和:2003

約数の個数: 64

約数和(自身を含む): 1358622720

約数和(自身を除く): 679992310

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 83, 95, 115, 166, 190, 230, 415, 437, 830, 874, 1577, 1871, 1909, 2185, 3154, 3742, 3818, 4370, 7885, 9355, 9545, 15770, 18710, 19090, 35549, 36271, 43033, 71098, 72542, 86066, 155293, 177745, 181355, 215165, 310586, 355490, 362710, 430330, 776465, 817627, 1552930, 1635254, 2950567, 3571739, 4088135, 5901134, 7143478, 8176270, 14752835, 17858695, 29505670, 35717390, 67863041, 135726082, 339315205, 678630410]

約数ペア:

[(1, 678630410), (2, 339315205), (5, 135726082), (10, 67863041), (19, 35717390), (23, 29505670), (38, 17858695), (46, 14752835), (83, 8176270), (95, 7143478), (115, 5901134), (166, 4088135), (190, 3571739), (230, 2950567), (415, 1635254), (437, 1552930), (830, 817627), (874, 776465), (1577, 430330), (1871, 362710), (1909, 355490), (2185, 310586), (3154, 215165), (3742, 181355), (3818, 177745), (4370, 155293), (7885, 86066), (9355, 72542), (9545, 71098), (15770, 43033), (18710, 36271), (19090, 35549)]