166218100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{571}}^1$

素因数の和:697

約数の個数: 72

約数和(自身を含む): 375350976

約数和(自身を除く): 209132876

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 71, 82, 100, 142, 164, 205, 284, 355, 410, 571, 710, 820, 1025, 1142, 1420, 1775, 2050, 2284, 2855, 2911, 3550, 4100, 5710, 5822, 7100, 11420, 11644, 14275, 14555, 23411, 28550, 29110, 40541, 46822, 57100, 58220, 72775, 81082, 93644, 117055, 145550, 162164, 202705, 234110, 291100, 405410, 468220, 585275, 810820, 1013525, 1170550, 1662181, 2027050, 2341100, 3324362, 4054100, 6648724, 8310905, 16621810, 33243620, 41554525, 83109050, 166218100]

約数ペア:

[(1, 166218100), (2, 83109050), (4, 41554525), (5, 33243620), (10, 16621810), (20, 8310905), (25, 6648724), (41, 4054100), (50, 3324362), (71, 2341100), (82, 2027050), (100, 1662181), (142, 1170550), (164, 1013525), (205, 810820), (284, 585275), (355, 468220), (410, 405410), (571, 291100), (710, 234110), (820, 202705), (1025, 162164), (1142, 145550), (1420, 117055), (1775, 93644), (2050, 81082), (2284, 72775), (2855, 58220), (2911, 57100), (3550, 46822), (4100, 40541), (5710, 29110), (5822, 28550), (7100, 23411), (11420, 14555), (11644, 14275)]