64027760

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:370

約数の個数: 80

約数和(自身を含む): 155156736

約数和(自身を除く): 91128976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 97, 148, 185, 194, 223, 296, 370, 388, 446, 485, 592, 740, 776, 892, 970, 1115, 1480, 1552, 1784, 1940, 2230, 2960, 3568, 3589, 3880, 4460, 7178, 7760, 8251, 8920, 14356, 16502, 17840, 17945, 21631, 28712, 33004, 35890, 41255, 43262, 57424, 66008, 71780, 82510, 86524, 108155, 132016, 143560, 165020, 173048, 216310, 287120, 330040, 346096, 432620, 660080, 800347, 865240, 1600694, 1730480, 3201388, 4001735, 6402776, 8003470, 12805552, 16006940, 32013880, 64027760]

約数ペア:

[(1, 64027760), (2, 32013880), (4, 16006940), (5, 12805552), (8, 8003470), (10, 6402776), (16, 4001735), (20, 3201388), (37, 1730480), (40, 1600694), (74, 865240), (80, 800347), (97, 660080), (148, 432620), (185, 346096), (194, 330040), (223, 287120), (296, 216310), (370, 173048), (388, 165020), (446, 143560), (485, 132016), (592, 108155), (740, 86524), (776, 82510), (892, 71780), (970, 66008), (1115, 57424), (1480, 43262), (1552, 41255), (1784, 35890), (1940, 33004), (2230, 28712), (2960, 21631), (3568, 17945), (3589, 17840), (3880, 16502), (4460, 14356), (7178, 8920), (7760, 8251)]