211151540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{3511}}^1$

素因数の和:3648

約数の個数: 48

約数和(自身を含む): 462572544

約数和(自身を除く): 251421004

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 97, 124, 155, 194, 310, 388, 485, 620, 970, 1940, 3007, 3511, 6014, 7022, 12028, 14044, 15035, 17555, 30070, 35110, 60140, 70220, 108841, 217682, 340567, 435364, 544205, 681134, 1088410, 1362268, 1702835, 2176820, 3405670, 6811340, 10557577, 21115154, 42230308, 52787885, 105575770, 211151540]

約数ペア:

[(1, 211151540), (2, 105575770), (4, 52787885), (5, 42230308), (10, 21115154), (20, 10557577), (31, 6811340), (62, 3405670), (97, 2176820), (124, 1702835), (155, 1362268), (194, 1088410), (310, 681134), (388, 544205), (485, 435364), (620, 340567), (970, 217682), (1940, 108841), (3007, 70220), (3511, 60140), (6014, 35110), (7022, 30070), (12028, 17555), (14044, 15035)]