25156760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{419}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 60480000

約数和(自身を除く): 35323240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 79, 95, 152, 158, 190, 316, 380, 395, 419, 632, 760, 790, 838, 1501, 1580, 1676, 2095, 3002, 3160, 3352, 4190, 6004, 7505, 7961, 8380, 12008, 15010, 15922, 16760, 30020, 31844, 33101, 39805, 60040, 63688, 66202, 79610, 132404, 159220, 165505, 264808, 318440, 331010, 628919, 662020, 1257838, 1324040, 2515676, 3144595, 5031352, 6289190, 12578380, 25156760]

約数ペア:

[(1, 25156760), (2, 12578380), (4, 6289190), (5, 5031352), (8, 3144595), (10, 2515676), (19, 1324040), (20, 1257838), (38, 662020), (40, 628919), (76, 331010), (79, 318440), (95, 264808), (152, 165505), (158, 159220), (190, 132404), (316, 79610), (380, 66202), (395, 63688), (419, 60040), (632, 39805), (760, 33101), (790, 31844), (838, 30020), (1501, 16760), (1580, 15922), (1676, 15010), (2095, 12008), (3002, 8380), (3160, 7961), (3352, 7505), (4190, 6004)]