25666360

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 59951520

約数和(自身を除く): 34285160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 67, 122, 134, 157, 244, 268, 305, 314, 335, 488, 536, 610, 628, 670, 785, 1220, 1256, 1340, 1570, 2440, 2680, 3140, 4087, 6280, 8174, 9577, 10519, 16348, 19154, 20435, 21038, 32696, 38308, 40870, 42076, 47885, 52595, 76616, 81740, 84152, 95770, 105190, 163480, 191540, 210380, 383080, 420760, 641659, 1283318, 2566636, 3208295, 5133272, 6416590, 12833180, 25666360]

約数ペア:

[(1, 25666360), (2, 12833180), (4, 6416590), (5, 5133272), (8, 3208295), (10, 2566636), (20, 1283318), (40, 641659), (61, 420760), (67, 383080), (122, 210380), (134, 191540), (157, 163480), (244, 105190), (268, 95770), (305, 84152), (314, 81740), (335, 76616), (488, 52595), (536, 47885), (610, 42076), (628, 40870), (670, 38308), (785, 32696), (1220, 21038), (1256, 20435), (1340, 19154), (1570, 16348), (2440, 10519), (2680, 9577), (3140, 8174), (4087, 6280)]