80963620

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1\times {\mathrm{269}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 173502000

約数和(自身を除く): 92538380

約数列:

[1, 2, 4, 5, 10, 20, 101, 149, 202, 269, 298, 404, 505, 538, 596, 745, 1010, 1076, 1345, 1490, 2020, 2690, 2980, 5380, 15049, 27169, 30098, 40081, 54338, 60196, 75245, 80162, 108676, 135845, 150490, 160324, 200405, 271690, 300980, 400810, 543380, 801620, 4048181, 8096362, 16192724, 20240905, 40481810, 80963620]

約数ペア:

[(1, 80963620), (2, 40481810), (4, 20240905), (5, 16192724), (10, 8096362), (20, 4048181), (101, 801620), (149, 543380), (202, 400810), (269, 300980), (298, 271690), (404, 200405), (505, 160324), (538, 150490), (596, 135845), (745, 108676), (1010, 80162), (1076, 75245), (1345, 60196), (1490, 54338), (2020, 40081), (2690, 30098), (2980, 27169), (5380, 15049)]