20809723915

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{367}}^1$

素因数の和:652

約数の個数: 64

約数和(自身を含む): 27203973120

約数和(自身を除く): 6394249205

約数列:

[1, 5, 23, 59, 61, 115, 137, 295, 305, 367, 685, 1357, 1403, 1835, 3151, 3599, 6785, 7015, 8083, 8357, 8441, 15755, 17995, 21653, 22387, 40415, 41785, 42205, 50279, 82777, 108265, 111935, 185909, 192211, 251395, 413885, 493063, 498019, 514901, 929545, 961055, 1156417, 1320833, 2465315, 2490095, 2574505, 2966461, 3067019, 5782085, 6604165, 11340449, 14832305, 15335095, 30379159, 56702245, 68228603, 70541437, 151895795, 180954121, 341143015, 352707185, 904770605, 4161944783, 20809723915]

約数ペア:

[(1, 20809723915), (5, 4161944783), (23, 904770605), (59, 352707185), (61, 341143015), (115, 180954121), (137, 151895795), (295, 70541437), (305, 68228603), (367, 56702245), (685, 30379159), (1357, 15335095), (1403, 14832305), (1835, 11340449), (3151, 6604165), (3599, 5782085), (6785, 3067019), (7015, 2966461), (8083, 2574505), (8357, 2490095), (8441, 2465315), (15755, 1320833), (17995, 1156417), (21653, 961055), (22387, 929545), (40415, 514901), (41785, 498019), (42205, 493063), (50279, 413885), (82777, 251395), (108265, 192211), (111935, 185909)]