130375640

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{4931}}^1$

素因数の和:5603

約数の個数: 32

約数和(自身を含む): 293848560

約数和(自身を除く): 163472920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3305, 4931, 5288, 6610, 9862, 13220, 19724, 24655, 26440, 39448, 49310, 98620, 197240, 3259391, 6518782, 13037564, 16296955, 26075128, 32593910, 65187820, 130375640]

約数ペア:

[(1, 130375640), (2, 65187820), (4, 32593910), (5, 26075128), (8, 16296955), (10, 13037564), (20, 6518782), (40, 3259391), (661, 197240), (1322, 98620), (2644, 49310), (3305, 39448), (4931, 26440), (5288, 24655), (6610, 19724), (9862, 13220)]