890991280

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{152567}}^1$

素因数の和:152653

約数の個数: 40

約数和(自身を含む): 2099945952

約数和(自身を除く): 1208954672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 5840, 152567, 305134, 610268, 762835, 1220536, 1525670, 2441072, 3051340, 6102680, 11137391, 12205360, 22274782, 44549564, 55686955, 89099128, 111373910, 178198256, 222747820, 445495640, 890991280]

約数ペア:

[(1, 890991280), (2, 445495640), (4, 222747820), (5, 178198256), (8, 111373910), (10, 89099128), (16, 55686955), (20, 44549564), (40, 22274782), (73, 12205360), (80, 11137391), (146, 6102680), (292, 3051340), (365, 2441072), (584, 1525670), (730, 1220536), (1168, 762835), (1460, 610268), (2920, 305134), (5840, 152567)]