231640240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{222731}}^1$

素因数の和:222757

約数の個数: 40

約数和(自身を含む): 579994128

約数和(自身を除く): 348353888

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 222731, 445462, 890924, 1113655, 1781848, 2227310, 2895503, 3563696, 4454620, 5791006, 8909240, 11582012, 14477515, 17818480, 23164024, 28955030, 46328048, 57910060, 115820120, 231640240]

約数ペア:

[(1, 231640240), (2, 115820120), (4, 57910060), (5, 46328048), (8, 28955030), (10, 23164024), (13, 17818480), (16, 14477515), (20, 11582012), (26, 8909240), (40, 5791006), (52, 4454620), (65, 3563696), (80, 2895503), (104, 2227310), (130, 1781848), (208, 1113655), (260, 890924), (520, 445462), (1040, 222731)]