68751405

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{421}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 126397440

約数和(自身を除く): 57646035

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 191, 285, 421, 573, 855, 955, 1263, 1719, 2105, 2865, 3629, 3789, 6315, 7999, 8595, 10887, 18145, 18945, 23997, 32661, 39995, 54435, 71991, 80411, 119985, 163305, 241233, 359955, 402055, 723699, 1206165, 1527809, 3618495, 4583427, 7639045, 13750281, 22917135, 68751405]

約数ペア:

[(1, 68751405), (3, 22917135), (5, 13750281), (9, 7639045), (15, 4583427), (19, 3618495), (45, 1527809), (57, 1206165), (95, 723699), (171, 402055), (191, 359955), (285, 241233), (421, 163305), (573, 119985), (855, 80411), (955, 71991), (1263, 54435), (1719, 39995), (2105, 32661), (2865, 23997), (3629, 18945), (3789, 18145), (6315, 10887), (7999, 8595)]