17882920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{419}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 44452800

約数和(自身を除く): 26569880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 97, 110, 194, 220, 388, 419, 440, 485, 776, 838, 970, 1067, 1676, 1940, 2095, 2134, 3352, 3880, 4190, 4268, 4609, 5335, 8380, 8536, 9218, 10670, 16760, 18436, 21340, 23045, 36872, 40643, 42680, 46090, 81286, 92180, 162572, 184360, 203215, 325144, 406430, 447073, 812860, 894146, 1625720, 1788292, 2235365, 3576584, 4470730, 8941460, 17882920]

約数ペア:

[(1, 17882920), (2, 8941460), (4, 4470730), (5, 3576584), (8, 2235365), (10, 1788292), (11, 1625720), (20, 894146), (22, 812860), (40, 447073), (44, 406430), (55, 325144), (88, 203215), (97, 184360), (110, 162572), (194, 92180), (220, 81286), (388, 46090), (419, 42680), (440, 40643), (485, 36872), (776, 23045), (838, 21340), (970, 18436), (1067, 16760), (1676, 10670), (1940, 9218), (2095, 8536), (2134, 8380), (3352, 5335), (3880, 4609), (4190, 4268)]