20185865860

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^2\times {\mathrm{7753}}^1$

素因数の和:7925

約数の個数: 72

約数和(自身を含む): 44522072280

約数和(自身を除く): 24336206420

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 67, 116, 134, 145, 268, 290, 335, 580, 670, 1340, 1943, 3886, 4489, 7753, 7772, 8978, 9715, 15506, 17956, 19430, 22445, 31012, 38765, 38860, 44890, 77530, 89780, 130181, 155060, 224837, 260362, 449674, 519451, 520724, 650905, 899348, 1038902, 1124185, 1301810, 2077804, 2248370, 2597255, 2603620, 4496740, 5194510, 10389020, 15064079, 30128158, 34803217, 60256316, 69606434, 75320395, 139212868, 150640790, 174016085, 301281580, 348032170, 696064340, 1009293293, 2018586586, 4037173172, 5046466465, 10092932930, 20185865860]

約数ペア:

[(1, 20185865860), (2, 10092932930), (4, 5046466465), (5, 4037173172), (10, 2018586586), (20, 1009293293), (29, 696064340), (58, 348032170), (67, 301281580), (116, 174016085), (134, 150640790), (145, 139212868), (268, 75320395), (290, 69606434), (335, 60256316), (580, 34803217), (670, 30128158), (1340, 15064079), (1943, 10389020), (3886, 5194510), (4489, 4496740), (7753, 2603620), (7772, 2597255), (8978, 2248370), (9715, 2077804), (15506, 1301810), (17956, 1124185), (19430, 1038902), (22445, 899348), (31012, 650905), (38765, 520724), (38860, 519451), (44890, 449674), (77530, 260362), (89780, 224837), (130181, 155060)]