161977620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{385661}}^1$

素因数の和:385680

約数の個数: 48

約数和(自身を含む): 518329728

約数和(自身を除く): 356352108

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 385661, 771322, 1156983, 1542644, 1928305, 2313966, 2699627, 3856610, 4627932, 5399254, 5784915, 7713220, 8098881, 10798508, 11569830, 13498135, 16197762, 23139660, 26996270, 32395524, 40494405, 53992540, 80988810, 161977620]

約数ペア:

[(1, 161977620), (2, 80988810), (3, 53992540), (4, 40494405), (5, 32395524), (6, 26996270), (7, 23139660), (10, 16197762), (12, 13498135), (14, 11569830), (15, 10798508), (20, 8098881), (21, 7713220), (28, 5784915), (30, 5399254), (35, 4627932), (42, 3856610), (60, 2699627), (70, 2313966), (84, 1928305), (105, 1542644), (140, 1156983), (210, 771322), (420, 385661)]