39995890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{317}}^1$

素因数の和:403

約数の個数: 64

約数和(自身を含む): 83524608

約数和(自身を除く): 43528718

約数列:

[1, 2, 5, 10, 11, 22, 31, 37, 55, 62, 74, 110, 155, 185, 310, 317, 341, 370, 407, 634, 682, 814, 1147, 1585, 1705, 2035, 2294, 3170, 3410, 3487, 4070, 5735, 6974, 9827, 11470, 11729, 12617, 17435, 19654, 23458, 25234, 34870, 49135, 58645, 63085, 98270, 108097, 117290, 126170, 129019, 216194, 258038, 363599, 540485, 645095, 727198, 1080970, 1290190, 1817995, 3635990, 3999589, 7999178, 19997945, 39995890]

約数ペア:

[(1, 39995890), (2, 19997945), (5, 7999178), (10, 3999589), (11, 3635990), (22, 1817995), (31, 1290190), (37, 1080970), (55, 727198), (62, 645095), (74, 540485), (110, 363599), (155, 258038), (185, 216194), (310, 129019), (317, 126170), (341, 117290), (370, 108097), (407, 98270), (634, 63085), (682, 58645), (814, 49135), (1147, 34870), (1585, 25234), (1705, 23458), (2035, 19654), (2294, 17435), (3170, 12617), (3410, 11729), (3487, 11470), (4070, 9827), (5735, 6974)]