12521210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 25297920

約数和(自身を除く): 12776710

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 169, 239, 310, 338, 403, 478, 806, 845, 1195, 1690, 2015, 2390, 3107, 4030, 5239, 6214, 7409, 10478, 14818, 15535, 26195, 31070, 37045, 40391, 52390, 74090, 80782, 96317, 192634, 201955, 403910, 481585, 963170, 1252121, 2504242, 6260605, 12521210]

約数ペア:

[(1, 12521210), (2, 6260605), (5, 2504242), (10, 1252121), (13, 963170), (26, 481585), (31, 403910), (62, 201955), (65, 192634), (130, 96317), (155, 80782), (169, 74090), (239, 52390), (310, 40391), (338, 37045), (403, 31070), (478, 26195), (806, 15535), (845, 14818), (1195, 10478), (1690, 7409), (2015, 6214), (2390, 5239), (3107, 4030)]