251201730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{644107}}^1$

素因数の和:644130

約数の個数: 32

約数和(自身を含む): 649260864

約数和(自身を除く): 398059134

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 644107, 1288214, 1932321, 3220535, 3864642, 6441070, 8373391, 9661605, 16746782, 19323210, 25120173, 41866955, 50240346, 83733910, 125600865, 251201730]

約数ペア:

[(1, 251201730), (2, 125600865), (3, 83733910), (5, 50240346), (6, 41866955), (10, 25120173), (13, 19323210), (15, 16746782), (26, 9661605), (30, 8373391), (39, 6441070), (65, 3864642), (78, 3220535), (130, 1932321), (195, 1288214), (390, 644107)]