8791220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 19305216

約数和(自身を除く): 10513996

約数列:

[1, 2, 4, 5, 10, 20, 41, 71, 82, 142, 151, 164, 205, 284, 302, 355, 410, 604, 710, 755, 820, 1420, 1510, 2911, 3020, 5822, 6191, 10721, 11644, 12382, 14555, 21442, 24764, 29110, 30955, 42884, 53605, 58220, 61910, 107210, 123820, 214420, 439561, 879122, 1758244, 2197805, 4395610, 8791220]

約数ペア:

[(1, 8791220), (2, 4395610), (4, 2197805), (5, 1758244), (10, 879122), (20, 439561), (41, 214420), (71, 123820), (82, 107210), (142, 61910), (151, 58220), (164, 53605), (205, 42884), (284, 30955), (302, 29110), (355, 24764), (410, 21442), (604, 14555), (710, 12382), (755, 11644), (820, 10721), (1420, 6191), (1510, 5822), (2911, 3020)]