125940280

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{12251}}^1$

素因数の和:12519

約数の個数: 32

約数和(自身を含む): 284491440

約数和(自身を除く): 158551160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 10280, 12251, 24502, 49004, 61255, 98008, 122510, 245020, 490040, 3148507, 6297014, 12594028, 15742535, 25188056, 31485070, 62970140, 125940280]

約数ペア:

[(1, 125940280), (2, 62970140), (4, 31485070), (5, 25188056), (8, 15742535), (10, 12594028), (20, 6297014), (40, 3148507), (257, 490040), (514, 245020), (1028, 122510), (1285, 98008), (2056, 61255), (2570, 49004), (5140, 24502), (10280, 12251)]