81771595425

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{89891}}^1$

素因数の和:90231

約数の個数: 72

約数和(自身を含む): 158237247168

約数和(自身を除く): 76465651743

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 311, 325, 585, 933, 975, 1555, 2799, 2925, 4043, 4665, 7775, 12129, 13995, 20215, 23325, 36387, 60645, 69975, 89891, 101075, 181935, 269673, 303225, 449455, 809019, 909675, 1168583, 1348365, 2247275, 3505749, 4045095, 5842915, 6741825, 10517247, 17528745, 20225475, 27956101, 29214575, 52586235, 83868303, 87643725, 139780505, 251604909, 262931175, 363429313, 419341515, 698902525, 1090287939, 1258024545, 1817146565, 2096707575, 3270863817, 5451439695, 6290122725, 9085732825, 16354319085, 27257198475, 81771595425]

約数ペア:

[(1, 81771595425), (3, 27257198475), (5, 16354319085), (9, 9085732825), (13, 6290122725), (15, 5451439695), (25, 3270863817), (39, 2096707575), (45, 1817146565), (65, 1258024545), (75, 1090287939), (117, 698902525), (195, 419341515), (225, 363429313), (311, 262931175), (325, 251604909), (585, 139780505), (933, 87643725), (975, 83868303), (1555, 52586235), (2799, 29214575), (2925, 27956101), (4043, 20225475), (4665, 17528745), (7775, 10517247), (12129, 6741825), (13995, 5842915), (20215, 4045095), (23325, 3505749), (36387, 2247275), (60645, 1348365), (69975, 1168583), (89891, 909675), (101075, 809019), (181935, 449455), (269673, 303225)]