157929580

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{641}}^1$

素因数の和:874

約数の個数: 48

約数和(自身を含む): 338236416

約数和(自身を除く): 180306836

約数列:

[1, 2, 4, 5, 10, 20, 97, 127, 194, 254, 388, 485, 508, 635, 641, 970, 1270, 1282, 1940, 2540, 2564, 3205, 6410, 12319, 12820, 24638, 49276, 61595, 62177, 81407, 123190, 124354, 162814, 246380, 248708, 310885, 325628, 407035, 621770, 814070, 1243540, 1628140, 7896479, 15792958, 31585916, 39482395, 78964790, 157929580]

約数ペア:

[(1, 157929580), (2, 78964790), (4, 39482395), (5, 31585916), (10, 15792958), (20, 7896479), (97, 1628140), (127, 1243540), (194, 814070), (254, 621770), (388, 407035), (485, 325628), (508, 310885), (635, 248708), (641, 246380), (970, 162814), (1270, 124354), (1282, 123190), (1940, 81407), (2540, 62177), (2564, 61595), (3205, 49276), (6410, 24638), (12319, 12820)]