129974920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^2\times {\mathrm{1933}}^1$

素因数の和:2026

約数の個数: 48

約数和(自身を含む): 299905380

約数和(自身を除く): 169930460

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 1681, 1933, 3362, 3866, 6724, 7732, 8405, 9665, 13448, 15464, 16810, 19330, 33620, 38660, 67240, 77320, 79253, 158506, 317012, 396265, 634024, 792530, 1585060, 3170120, 3249373, 6498746, 12997492, 16246865, 25994984, 32493730, 64987460, 129974920]

約数ペア:

[(1, 129974920), (2, 64987460), (4, 32493730), (5, 25994984), (8, 16246865), (10, 12997492), (20, 6498746), (40, 3249373), (41, 3170120), (82, 1585060), (164, 792530), (205, 634024), (328, 396265), (410, 317012), (820, 158506), (1640, 79253), (1681, 77320), (1933, 67240), (3362, 38660), (3866, 33620), (6724, 19330), (7732, 16810), (8405, 15464), (9665, 13448)]