391022730

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{620671}}^1$

素因数の和:620691

約数の個数: 48

約数和(自身を含む): 1161897984

約数和(自身を除く): 770875254

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 620671, 1241342, 1862013, 3103355, 3724026, 4344697, 5586039, 6206710, 8689394, 9310065, 11172078, 13034091, 18620130, 21723485, 26068182, 27930195, 39102273, 43446970, 55860390, 65170455, 78204546, 130340910, 195511365, 391022730]

約数ペア:

[(1, 391022730), (2, 195511365), (3, 130340910), (5, 78204546), (6, 65170455), (7, 55860390), (9, 43446970), (10, 39102273), (14, 27930195), (15, 26068182), (18, 21723485), (21, 18620130), (30, 13034091), (35, 11172078), (42, 9310065), (45, 8689394), (63, 6206710), (70, 5586039), (90, 4344697), (105, 3724026), (126, 3103355), (210, 1862013), (315, 1241342), (630, 620671)]