20076720920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^2\times {\mathrm{298583}}^1$

素因数の和:298676

約数の個数: 48

約数和(自身を含む): 46301420880

約数和(自身を除く): 26224699960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 1681, 3362, 6724, 8405, 13448, 16810, 33620, 67240, 298583, 597166, 1194332, 1492915, 2388664, 2985830, 5971660, 11943320, 12241903, 24483806, 48967612, 61209515, 97935224, 122419030, 244838060, 489676120, 501918023, 1003836046, 2007672092, 2509590115, 4015344184, 5019180230, 10038360460, 20076720920]

約数ペア:

[(1, 20076720920), (2, 10038360460), (4, 5019180230), (5, 4015344184), (8, 2509590115), (10, 2007672092), (20, 1003836046), (40, 501918023), (41, 489676120), (82, 244838060), (164, 122419030), (205, 97935224), (328, 61209515), (410, 48967612), (820, 24483806), (1640, 12241903), (1681, 11943320), (3362, 5971660), (6724, 2985830), (8405, 2388664), (13448, 1492915), (16810, 1194332), (33620, 597166), (67240, 298583)]