20720688380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{21673}}^1\times {\mathrm{6829}}^1$

素因数の和:28518

約数の個数: 48

約数和(自身を含む): 49739229120

約数和(自身を除く): 29018540740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 6829, 13658, 21673, 27316, 34145, 43346, 47803, 68290, 86692, 95606, 108365, 136580, 151711, 191212, 216730, 239015, 303422, 433460, 478030, 606844, 758555, 956060, 1517110, 3034220, 148004917, 296009834, 592019668, 740024585, 1036034419, 1480049170, 2072068838, 2960098340, 4144137676, 5180172095, 10360344190, 20720688380]

約数ペア:

[(1, 20720688380), (2, 10360344190), (4, 5180172095), (5, 4144137676), (7, 2960098340), (10, 2072068838), (14, 1480049170), (20, 1036034419), (28, 740024585), (35, 592019668), (70, 296009834), (140, 148004917), (6829, 3034220), (13658, 1517110), (21673, 956060), (27316, 758555), (34145, 606844), (43346, 478030), (47803, 433460), (68290, 303422), (86692, 239015), (95606, 216730), (108365, 191212), (136580, 151711)]