253081580

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^2\times {\mathrm{991}}^1$

素因数の和:1226

約数の個数: 36

約数和(自身を含む): 536757312

約数和(自身を除く): 283675732

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 991, 1130, 1982, 2260, 3964, 4955, 9910, 12769, 19820, 25538, 51076, 63845, 111983, 127690, 223966, 255380, 447932, 559915, 1119830, 2239660, 12654079, 25308158, 50616316, 63270395, 126540790, 253081580]

約数ペア:

[(1, 253081580), (2, 126540790), (4, 63270395), (5, 50616316), (10, 25308158), (20, 12654079), (113, 2239660), (226, 1119830), (452, 559915), (565, 447932), (991, 255380), (1130, 223966), (1982, 127690), (2260, 111983), (3964, 63845), (4955, 51076), (9910, 25538), (12769, 19820)]