172640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1$

素因数の和:111

約数の個数: 48

約数和(自身を含む): 444528

約数和(自身を除く): 271888

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 83, 104, 130, 160, 166, 208, 260, 332, 415, 416, 520, 664, 830, 1040, 1079, 1328, 1660, 2080, 2158, 2656, 3320, 4316, 5395, 6640, 8632, 10790, 13280, 17264, 21580, 34528, 43160, 86320, 172640]

約数ペア:

[(1, 172640), (2, 86320), (4, 43160), (5, 34528), (8, 21580), (10, 17264), (13, 13280), (16, 10790), (20, 8632), (26, 6640), (32, 5395), (40, 4316), (52, 3320), (65, 2656), (80, 2158), (83, 2080), (104, 1660), (130, 1328), (160, 1079), (166, 1040), (208, 830), (260, 664), (332, 520), (415, 416)]