154592920

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{12589}}^1$

素因数の和:12907

約数の個数: 32

約数和(自身を含む): 348994800

約数和(自身を除く): 194401880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 6140, 12280, 12589, 25178, 50356, 62945, 100712, 125890, 251780, 503560, 3864823, 7729646, 15459292, 19324115, 30918584, 38648230, 77296460, 154592920]

約数ペア:

[(1, 154592920), (2, 77296460), (4, 38648230), (5, 30918584), (8, 19324115), (10, 15459292), (20, 7729646), (40, 3864823), (307, 503560), (614, 251780), (1228, 125890), (1535, 100712), (2456, 62945), (3070, 50356), (6140, 25178), (12280, 12589)]