257220050

素因数分解:

$2^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{65119}}^1$

素因数の和:65210

約数の個数: 24

約数和(自身を含む): 484492800

約数和(自身を除く): 227272750

約数列:

[1, 2, 5, 10, 25, 50, 79, 158, 395, 790, 1975, 3950, 65119, 130238, 325595, 651190, 1627975, 3255950, 5144401, 10288802, 25722005, 51444010, 128610025, 257220050]

約数ペア:

[(1, 257220050), (2, 128610025), (5, 51444010), (10, 25722005), (25, 10288802), (50, 5144401), (79, 3255950), (158, 1627975), (395, 651190), (790, 325595), (1975, 130238), (3950, 65119)]