1978848180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1103}}^1\times {\mathrm{9967}}^1$

素因数の和:11085

約数の個数: 72

約数和(自身を含む): 6008550912

約数和(自身を除く): 4029702732

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1103, 2206, 3309, 4412, 5515, 6618, 9927, 9967, 11030, 13236, 16545, 19854, 19934, 22060, 29901, 33090, 39708, 39868, 49635, 49835, 59802, 66180, 89703, 99270, 99670, 119604, 149505, 179406, 198540, 199340, 299010, 358812, 448515, 598020, 897030, 1794060, 10993601, 21987202, 32980803, 43974404, 54968005, 65961606, 98942409, 109936010, 131923212, 164904015, 197884818, 219872020, 329808030, 395769636, 494712045, 659616060, 989424090, 1978848180]

約数ペア:

[(1, 1978848180), (2, 989424090), (3, 659616060), (4, 494712045), (5, 395769636), (6, 329808030), (9, 219872020), (10, 197884818), (12, 164904015), (15, 131923212), (18, 109936010), (20, 98942409), (30, 65961606), (36, 54968005), (45, 43974404), (60, 32980803), (90, 21987202), (180, 10993601), (1103, 1794060), (2206, 897030), (3309, 598020), (4412, 448515), (5515, 358812), (6618, 299010), (9927, 199340), (9967, 198540), (11030, 179406), (13236, 149505), (16545, 119604), (19854, 99670), (19934, 99270), (22060, 89703), (29901, 66180), (33090, 59802), (39708, 49835), (39868, 49635)]