621000980

素因数分解:

$2^2\times 5^1\times {\mathrm{6871}}^1\times {\mathrm{4519}}^1$

素因数の和:11399

約数の個数: 24

約数和(自身を含む): 1304580480

約数和(自身を除く): 683579500

約数列:

[1, 2, 4, 5, 10, 20, 4519, 6871, 9038, 13742, 18076, 22595, 27484, 34355, 45190, 68710, 90380, 137420, 31050049, 62100098, 124200196, 155250245, 310500490, 621000980]

約数ペア:

[(1, 621000980), (2, 310500490), (4, 155250245), (5, 124200196), (10, 62100098), (20, 31050049), (4519, 137420), (6871, 90380), (9038, 68710), (13742, 45190), (18076, 34355), (22595, 27484)]