251691830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{18797}}^1$

素因数の和:18920

約数の個数: 32

約数和(自身を含む): 492657984

約数和(自身を除く): 240966154

約数列:

[1, 2, 5, 10, 13, 26, 65, 103, 130, 206, 515, 1030, 1339, 2678, 6695, 13390, 18797, 37594, 93985, 187970, 244361, 488722, 1221805, 1936091, 2443610, 3872182, 9680455, 19360910, 25169183, 50338366, 125845915, 251691830]

約数ペア:

[(1, 251691830), (2, 125845915), (5, 50338366), (10, 25169183), (13, 19360910), (26, 9680455), (65, 3872182), (103, 2443610), (130, 1936091), (206, 1221805), (515, 488722), (1030, 244361), (1339, 187970), (2678, 93985), (6695, 37594), (13390, 18797)]