127112680

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{181}}^2$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 290557260

約数和(自身を除く): 163444580

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 181, 194, 362, 388, 485, 724, 776, 905, 970, 1448, 1810, 1940, 3620, 3880, 7240, 17557, 32761, 35114, 65522, 70228, 87785, 131044, 140456, 163805, 175570, 262088, 327610, 351140, 655220, 702280, 1310440, 3177817, 6355634, 12711268, 15889085, 25422536, 31778170, 63556340, 127112680]

約数ペア:

[(1, 127112680), (2, 63556340), (4, 31778170), (5, 25422536), (8, 15889085), (10, 12711268), (20, 6355634), (40, 3177817), (97, 1310440), (181, 702280), (194, 655220), (362, 351140), (388, 327610), (485, 262088), (724, 175570), (776, 163805), (905, 140456), (970, 131044), (1448, 87785), (1810, 70228), (1940, 65522), (3620, 35114), (3880, 32761), (7240, 17557)]