64949140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{383}}^1$

素因数の和:592

約数の個数: 48

約数和(自身を含む): 139991040

約数和(自身を除く): 75041900

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 139, 244, 278, 305, 383, 556, 610, 695, 766, 1220, 1390, 1532, 1915, 2780, 3830, 7660, 8479, 16958, 23363, 33916, 42395, 46726, 53237, 84790, 93452, 106474, 116815, 169580, 212948, 233630, 266185, 467260, 532370, 1064740, 3247457, 6494914, 12989828, 16237285, 32474570, 64949140]

約数ペア:

[(1, 64949140), (2, 32474570), (4, 16237285), (5, 12989828), (10, 6494914), (20, 3247457), (61, 1064740), (122, 532370), (139, 467260), (244, 266185), (278, 233630), (305, 212948), (383, 169580), (556, 116815), (610, 106474), (695, 93452), (766, 84790), (1220, 53237), (1390, 46726), (1532, 42395), (1915, 33916), (2780, 23363), (3830, 16958), (7660, 8479)]