12906440

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1409}}^1$

素因数の和:1649

約数の個数: 32

約数和(自身を含む): 29187000

約数和(自身を除く): 16280560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1409, 1832, 2290, 2818, 4580, 5636, 7045, 9160, 11272, 14090, 28180, 56360, 322661, 645322, 1290644, 1613305, 2581288, 3226610, 6453220, 12906440]

約数ペア:

[(1, 12906440), (2, 6453220), (4, 3226610), (5, 2581288), (8, 1613305), (10, 1290644), (20, 645322), (40, 322661), (229, 56360), (458, 28180), (916, 14090), (1145, 11272), (1409, 9160), (1832, 7045), (2290, 5636), (2818, 4580)]