20131493775

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:753

約数の個数: 96

約数和(自身を含む): 34923288576

約数和(自身を除く): 14791794801

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 131, 155, 157, 393, 421, 465, 471, 655, 775, 785, 1263, 1965, 2105, 2325, 2355, 3275, 3925, 4061, 4867, 6315, 9825, 10525, 11775, 12183, 13051, 14601, 20305, 20567, 24335, 31575, 39153, 55151, 60915, 61701, 65255, 66097, 73005, 101525, 102835, 121675, 165453, 195765, 198291, 275755, 304575, 308505, 326275, 330485, 365025, 514175, 637577, 827265, 978825, 991455, 1378775, 1542525, 1652425, 1709681, 1912731, 2049007, 3187885, 4136325, 4957275, 5129043, 6147021, 8548405, 8658707, 9563655, 10245035, 15939425, 25645215, 25976121, 30735105, 42742025, 43293535, 47818275, 51225175, 128226075, 129880605, 153675525, 216467675, 268419917, 649403025, 805259751, 1342099585, 4026298755, 6710497925, 20131493775]

約数ペア:

[(1, 20131493775), (3, 6710497925), (5, 4026298755), (15, 1342099585), (25, 805259751), (31, 649403025), (75, 268419917), (93, 216467675), (131, 153675525), (155, 129880605), (157, 128226075), (393, 51225175), (421, 47818275), (465, 43293535), (471, 42742025), (655, 30735105), (775, 25976121), (785, 25645215), (1263, 15939425), (1965, 10245035), (2105, 9563655), (2325, 8658707), (2355, 8548405), (3275, 6147021), (3925, 5129043), (4061, 4957275), (4867, 4136325), (6315, 3187885), (9825, 2049007), (10525, 1912731), (11775, 1709681), (12183, 1652425), (13051, 1542525), (14601, 1378775), (20305, 991455), (20567, 978825), (24335, 827265), (31575, 637577), (39153, 514175), (55151, 365025), (60915, 330485), (61701, 326275), (65255, 308505), (66097, 304575), (73005, 275755), (101525, 198291), (102835, 195765), (121675, 165453)]