18856240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18131}}^1$

素因数の和:18157

約数の個数: 40

約数和(自身を含む): 47215728

約数和(自身を除く): 28359488

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18131, 36262, 72524, 90655, 145048, 181310, 235703, 290096, 362620, 471406, 725240, 942812, 1178515, 1450480, 1885624, 2357030, 3771248, 4714060, 9428120, 18856240]

約数ペア:

[(1, 18856240), (2, 9428120), (4, 4714060), (5, 3771248), (8, 2357030), (10, 1885624), (13, 1450480), (16, 1178515), (20, 942812), (26, 725240), (40, 471406), (52, 362620), (65, 290096), (80, 235703), (104, 181310), (130, 145048), (208, 90655), (260, 72524), (520, 36262), (1040, 18131)]