215402620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{2003}}^1$

素因数の和:2314

約数の個数: 48

約数和(自身を含む): 478074240

約数和(自身を除く): 262671620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 283, 380, 566, 1132, 1415, 2003, 2830, 4006, 5377, 5660, 8012, 10015, 10754, 20030, 21508, 26885, 38057, 40060, 53770, 76114, 107540, 152228, 190285, 380570, 566849, 761140, 1133698, 2267396, 2834245, 5668490, 10770131, 11336980, 21540262, 43080524, 53850655, 107701310, 215402620]

約数ペア:

[(1, 215402620), (2, 107701310), (4, 53850655), (5, 43080524), (10, 21540262), (19, 11336980), (20, 10770131), (38, 5668490), (76, 2834245), (95, 2267396), (190, 1133698), (283, 761140), (380, 566849), (566, 380570), (1132, 190285), (1415, 152228), (2003, 107540), (2830, 76114), (4006, 53770), (5377, 40060), (5660, 38057), (8012, 26885), (10015, 21508), (10754, 20030)]