18758708

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 36288000

約数和(自身を除く): 17529292

約数列:

[1, 2, 4, 23, 29, 46, 58, 79, 89, 92, 116, 158, 178, 316, 356, 667, 1334, 1817, 2047, 2291, 2581, 2668, 3634, 4094, 4582, 5162, 7031, 7268, 8188, 9164, 10324, 14062, 28124, 52693, 59363, 105386, 118726, 161713, 203899, 210772, 237452, 323426, 407798, 646852, 815596, 4689677, 9379354, 18758708]

約数ペア:

[(1, 18758708), (2, 9379354), (4, 4689677), (23, 815596), (29, 646852), (46, 407798), (58, 323426), (79, 237452), (89, 210772), (92, 203899), (116, 161713), (158, 118726), (178, 105386), (316, 59363), (356, 52693), (667, 28124), (1334, 14062), (1817, 10324), (2047, 9164), (2291, 8188), (2581, 7268), (2668, 7031), (3634, 5162), (4094, 4582)]