64948840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1$

素因数の和:515

約数の個数: 128

約数和(自身を含む): 178070400

約数和(自身を除く): 113121560

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 19, 20, 22, 34, 38, 40, 44, 55, 68, 76, 85, 88, 95, 110, 136, 152, 170, 187, 190, 209, 220, 323, 340, 374, 380, 418, 440, 457, 646, 680, 748, 760, 836, 914, 935, 1045, 1292, 1496, 1615, 1672, 1828, 1870, 2090, 2285, 2584, 3230, 3553, 3656, 3740, 4180, 4570, 5027, 6460, 7106, 7480, 7769, 8360, 8683, 9140, 10054, 12920, 14212, 15538, 17366, 17765, 18280, 20108, 25135, 28424, 31076, 34732, 35530, 38845, 40216, 43415, 50270, 62152, 69464, 71060, 77690, 85459, 86830, 95513, 100540, 142120, 147611, 155380, 170918, 173660, 191026, 201080, 295222, 310760, 341836, 347320, 382052, 427295, 477565, 590444, 683672, 738055, 764104, 854590, 955130, 1180888, 1476110, 1623721, 1709180, 1910260, 2952220, 3247442, 3418360, 3820520, 5904440, 6494884, 8118605, 12989768, 16237210, 32474420, 64948840]

約数ペア:

[(1, 64948840), (2, 32474420), (4, 16237210), (5, 12989768), (8, 8118605), (10, 6494884), (11, 5904440), (17, 3820520), (19, 3418360), (20, 3247442), (22, 2952220), (34, 1910260), (38, 1709180), (40, 1623721), (44, 1476110), (55, 1180888), (68, 955130), (76, 854590), (85, 764104), (88, 738055), (95, 683672), (110, 590444), (136, 477565), (152, 427295), (170, 382052), (187, 347320), (190, 341836), (209, 310760), (220, 295222), (323, 201080), (340, 191026), (374, 173660), (380, 170918), (418, 155380), (440, 147611), (457, 142120), (646, 100540), (680, 95513), (748, 86830), (760, 85459), (836, 77690), (914, 71060), (935, 69464), (1045, 62152), (1292, 50270), (1496, 43415), (1615, 40216), (1672, 38845), (1828, 35530), (1870, 34732), (2090, 31076), (2285, 28424), (2584, 25135), (3230, 20108), (3553, 18280), (3656, 17765), (3740, 17366), (4180, 15538), (4570, 14212), (5027, 12920), (6460, 10054), (7106, 9140), (7480, 8683), (7769, 8360)]