18614860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{443}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 42964992

約数和(自身を除く): 24350132

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 191, 220, 382, 443, 764, 886, 955, 1772, 1910, 2101, 2215, 3820, 4202, 4430, 4873, 8404, 8860, 9746, 10505, 19492, 21010, 24365, 42020, 48730, 84613, 97460, 169226, 338452, 423065, 846130, 930743, 1692260, 1861486, 3722972, 4653715, 9307430, 18614860]

約数ペア:

[(1, 18614860), (2, 9307430), (4, 4653715), (5, 3722972), (10, 1861486), (11, 1692260), (20, 930743), (22, 846130), (44, 423065), (55, 338452), (110, 169226), (191, 97460), (220, 84613), (382, 48730), (443, 42020), (764, 24365), (886, 21010), (955, 19492), (1772, 10505), (1910, 9746), (2101, 8860), (2215, 8404), (3820, 4873), (4202, 4430)]