18342700

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:203

約数の個数: 72

約数和(自身を含む): 42191744

約数和(自身を除く): 23849044

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 61, 62, 97, 100, 122, 124, 155, 194, 244, 305, 310, 388, 485, 610, 620, 775, 970, 1220, 1525, 1550, 1891, 1940, 2425, 3007, 3050, 3100, 3782, 4850, 5917, 6014, 6100, 7564, 9455, 9700, 11834, 12028, 15035, 18910, 23668, 29585, 30070, 37820, 47275, 59170, 60140, 75175, 94550, 118340, 147925, 150350, 183427, 189100, 295850, 300700, 366854, 591700, 733708, 917135, 1834270, 3668540, 4585675, 9171350, 18342700]

約数ペア:

[(1, 18342700), (2, 9171350), (4, 4585675), (5, 3668540), (10, 1834270), (20, 917135), (25, 733708), (31, 591700), (50, 366854), (61, 300700), (62, 295850), (97, 189100), (100, 183427), (122, 150350), (124, 147925), (155, 118340), (194, 94550), (244, 75175), (305, 60140), (310, 59170), (388, 47275), (485, 37820), (610, 30070), (620, 29585), (775, 23668), (970, 18910), (1220, 15035), (1525, 12028), (1550, 11834), (1891, 9700), (1940, 9455), (2425, 7564), (3007, 6100), (3050, 6014), (3100, 5917), (3782, 4850)]