289206440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{233231}}^1$

素因数の和:233273

約数の個数: 32

約数和(自身を含む): 671708160

約数和(自身を除く): 382501720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 233231, 466462, 932924, 1166155, 1865848, 2332310, 4664620, 7230161, 9329240, 14460322, 28920644, 36150805, 57841288, 72301610, 144603220, 289206440]

約数ペア:

[(1, 289206440), (2, 144603220), (4, 72301610), (5, 57841288), (8, 36150805), (10, 28920644), (20, 14460322), (31, 9329240), (40, 7230161), (62, 4664620), (124, 2332310), (155, 1865848), (248, 1166155), (310, 932924), (620, 466462), (1240, 233231)]