18640472

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{419}}^1$

素因数の和:575

約数の個数: 32

約数和(自身を含む): 35985600

約数和(自身を除く): 17345128

約数列:

[1, 2, 4, 8, 67, 83, 134, 166, 268, 332, 419, 536, 664, 838, 1676, 3352, 5561, 11122, 22244, 28073, 34777, 44488, 56146, 69554, 112292, 139108, 224584, 278216, 2330059, 4660118, 9320236, 18640472]

約数ペア:

[(1, 18640472), (2, 9320236), (4, 4660118), (8, 2330059), (67, 278216), (83, 224584), (134, 139108), (166, 112292), (268, 69554), (332, 56146), (419, 44488), (536, 34777), (664, 28073), (838, 22244), (1676, 11122), (3352, 5561)]