28021300

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{3547}}^1$

素因数の和:3640

約数の個数: 36

約数和(自身を含む): 61593280

約数和(自身を除く): 33571980

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 790, 1580, 1975, 3547, 3950, 7094, 7900, 14188, 17735, 35470, 70940, 88675, 177350, 280213, 354700, 560426, 1120852, 1401065, 2802130, 5604260, 7005325, 14010650, 28021300]

約数ペア:

[(1, 28021300), (2, 14010650), (4, 7005325), (5, 5604260), (10, 2802130), (20, 1401065), (25, 1120852), (50, 560426), (79, 354700), (100, 280213), (158, 177350), (316, 88675), (395, 70940), (790, 35470), (1580, 17735), (1975, 14188), (3547, 7900), (3950, 7094)]