19828980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110161}}^1$

素因数の和:110176

約数の個数: 36

約数和(自身を含む): 60148452

約数和(自身を除く): 40319472

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110161, 220322, 330483, 440644, 550805, 660966, 991449, 1101610, 1321932, 1652415, 1982898, 2203220, 3304830, 3965796, 4957245, 6609660, 9914490, 19828980]

約数ペア:

[(1, 19828980), (2, 9914490), (3, 6609660), (4, 4957245), (5, 3965796), (6, 3304830), (9, 2203220), (10, 1982898), (12, 1652415), (15, 1321932), (18, 1101610), (20, 991449), (30, 660966), (36, 550805), (45, 440644), (60, 330483), (90, 220322), (180, 110161)]