289060120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{233113}}^1$

素因数の和:233155

約数の個数: 32

約数和(自身を含む): 671368320

約数和(自身を除く): 382308200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 233113, 466226, 932452, 1165565, 1864904, 2331130, 4662260, 7226503, 9324520, 14453006, 28906012, 36132515, 57812024, 72265030, 144530060, 289060120]

約数ペア:

[(1, 289060120), (2, 144530060), (4, 72265030), (5, 57812024), (8, 36132515), (10, 28906012), (20, 14453006), (31, 9324520), (40, 7226503), (62, 4662260), (124, 2331130), (155, 1864904), (248, 1165565), (310, 932452), (620, 466226), (1240, 233113)]