25611580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 56206080

約数和(自身を除く): 30594500

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 101, 124, 155, 202, 310, 404, 409, 505, 620, 818, 1010, 1636, 2020, 2045, 3131, 4090, 6262, 8180, 12524, 12679, 15655, 25358, 31310, 41309, 50716, 62620, 63395, 82618, 126790, 165236, 206545, 253580, 413090, 826180, 1280579, 2561158, 5122316, 6402895, 12805790, 25611580]

約数ペア:

[(1, 25611580), (2, 12805790), (4, 6402895), (5, 5122316), (10, 2561158), (20, 1280579), (31, 826180), (62, 413090), (101, 253580), (124, 206545), (155, 165236), (202, 126790), (310, 82618), (404, 63395), (409, 62620), (505, 50716), (620, 41309), (818, 31310), (1010, 25358), (1636, 15655), (2020, 12679), (2045, 12524), (3131, 8180), (4090, 6262)]