80973620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{44491}}^1$

素因数の和:44520

約数の個数: 48

約数和(自身を含む): 209290368

約数和(自身を除く): 128316748

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 44491, 88982, 177964, 222455, 311437, 444910, 578383, 622874, 889820, 1156766, 1245748, 1557185, 2313532, 2891915, 3114370, 4048681, 5783830, 6228740, 8097362, 11567660, 16194724, 20243405, 40486810, 80973620]

約数ペア:

[(1, 80973620), (2, 40486810), (4, 20243405), (5, 16194724), (7, 11567660), (10, 8097362), (13, 6228740), (14, 5783830), (20, 4048681), (26, 3114370), (28, 2891915), (35, 2313532), (52, 1557185), (65, 1245748), (70, 1156766), (91, 889820), (130, 622874), (140, 578383), (182, 444910), (260, 311437), (364, 222455), (455, 177964), (910, 88982), (1820, 44491)]