77908025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{239}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 112492800

約数和(自身を除く): 34584775

約数列:

[1, 5, 13, 17, 25, 59, 65, 85, 221, 239, 295, 325, 425, 767, 1003, 1105, 1195, 1475, 3107, 3835, 4063, 5015, 5525, 5975, 13039, 14101, 15535, 19175, 20315, 25075, 52819, 65195, 70505, 77675, 101575, 183313, 239717, 264095, 325975, 352525, 916565, 1198585, 1320475, 3116321, 4582825, 5992925, 15581605, 77908025]

約数ペア:

[(1, 77908025), (5, 15581605), (13, 5992925), (17, 4582825), (25, 3116321), (59, 1320475), (65, 1198585), (85, 916565), (221, 352525), (239, 325975), (295, 264095), (325, 239717), (425, 183313), (767, 101575), (1003, 77675), (1105, 70505), (1195, 65195), (1475, 52819), (3107, 25075), (3835, 20315), (4063, 19175), (5015, 15535), (5525, 14101), (5975, 13039)]