12961720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10453}}^1$

素因数の和:10495

約数の個数: 32

約数和(自身を含む): 30107520

約数和(自身を除く): 17145800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 10453, 20906, 41812, 52265, 83624, 104530, 209060, 324043, 418120, 648086, 1296172, 1620215, 2592344, 3240430, 6480860, 12961720]

約数ペア:

[(1, 12961720), (2, 6480860), (4, 3240430), (5, 2592344), (8, 1620215), (10, 1296172), (20, 648086), (31, 418120), (40, 324043), (62, 209060), (124, 104530), (155, 83624), (248, 52265), (310, 41812), (620, 20906), (1240, 10453)]