227610380

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{1801}}^1$

素因数の和:1970

約数の個数: 48

約数和(自身を含む): 490432320

約数和(自身を除く): 262821940

約数列:

[1, 2, 4, 5, 10, 20, 71, 89, 142, 178, 284, 355, 356, 445, 710, 890, 1420, 1780, 1801, 3602, 6319, 7204, 9005, 12638, 18010, 25276, 31595, 36020, 63190, 126380, 127871, 160289, 255742, 320578, 511484, 639355, 641156, 801445, 1278710, 1602890, 2557420, 3205780, 11380519, 22761038, 45522076, 56902595, 113805190, 227610380]

約数ペア:

[(1, 227610380), (2, 113805190), (4, 56902595), (5, 45522076), (10, 22761038), (20, 11380519), (71, 3205780), (89, 2557420), (142, 1602890), (178, 1278710), (284, 801445), (355, 641156), (356, 639355), (445, 511484), (710, 320578), (890, 255742), (1420, 160289), (1780, 127871), (1801, 126380), (3602, 63190), (6319, 36020), (7204, 31595), (9005, 25276), (12638, 18010)]