12578380

素因数分解:

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

素因数の和:526

約数の個数: 48

約数和(自身を含む): 28224000

約数和(自身を除く): 15645620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 419, 790, 838, 1501, 1580, 1676, 2095, 3002, 4190, 6004, 7505, 7961, 8380, 15010, 15922, 30020, 31844, 33101, 39805, 66202, 79610, 132404, 159220, 165505, 331010, 628919, 662020, 1257838, 2515676, 3144595, 6289190, 12578380]

約数ペア:

[(1, 12578380), (2, 6289190), (4, 3144595), (5, 2515676), (10, 1257838), (19, 662020), (20, 628919), (38, 331010), (76, 165505), (79, 159220), (95, 132404), (158, 79610), (190, 66202), (316, 39805), (380, 33101), (395, 31844), (419, 30020), (790, 15922), (838, 15010), (1501, 8380), (1580, 7961), (1676, 7505), (2095, 6004), (3002, 4190)]