1829840

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:359

約数の個数: 40

約数和(自身を含む): 4318920

約数和(自身を除く): 2489080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 257, 356, 445, 514, 712, 890, 1028, 1285, 1424, 1780, 2056, 2570, 3560, 4112, 5140, 7120, 10280, 20560, 22873, 45746, 91492, 114365, 182984, 228730, 365968, 457460, 914920, 1829840]

約数ペア:

[(1, 1829840), (2, 914920), (4, 457460), (5, 365968), (8, 228730), (10, 182984), (16, 114365), (20, 91492), (40, 45746), (80, 22873), (89, 20560), (178, 10280), (257, 7120), (356, 5140), (445, 4112), (514, 3560), (712, 2570), (890, 2056), (1028, 1780), (1285, 1424)]