18484850

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 35997696

約数和(自身を除く): 17512846

約数列:

[1, 2, 5, 10, 25, 41, 50, 71, 82, 127, 142, 205, 254, 355, 410, 635, 710, 1025, 1270, 1775, 2050, 2911, 3175, 3550, 5207, 5822, 6350, 9017, 10414, 14555, 18034, 26035, 29110, 45085, 52070, 72775, 90170, 130175, 145550, 225425, 260350, 369697, 450850, 739394, 1848485, 3696970, 9242425, 18484850]

約数ペア:

[(1, 18484850), (2, 9242425), (5, 3696970), (10, 1848485), (25, 739394), (41, 450850), (50, 369697), (71, 260350), (82, 225425), (127, 145550), (142, 130175), (205, 90170), (254, 72775), (355, 52070), (410, 45085), (635, 29110), (710, 26035), (1025, 18034), (1270, 14555), (1775, 10414), (2050, 9017), (2911, 6350), (3175, 5822), (3550, 5207)]