72622420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{279317}}^1$

素因数の和:279339

約数の個数: 24

約数和(自身を含む): 164238984

約数和(自身を除く): 91616564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 279317, 558634, 1117268, 1396585, 2793170, 3631121, 5586340, 7262242, 14524484, 18155605, 36311210, 72622420]

約数ペア:

[(1, 72622420), (2, 36311210), (4, 18155605), (5, 14524484), (10, 7262242), (13, 5586340), (20, 3631121), (26, 2793170), (52, 1396585), (65, 1117268), (130, 558634), (260, 279317)]