28158650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43321}}^1$

素因数の和:43346

約数の個数: 24

約数和(自身を含む): 56405244

約数和(自身を除く): 28246594

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 43321, 86642, 216605, 433210, 563173, 1083025, 1126346, 2166050, 2815865, 5631730, 14079325, 28158650]

約数ペア:

[(1, 28158650), (2, 14079325), (5, 5631730), (10, 2815865), (13, 2166050), (25, 1126346), (26, 1083025), (50, 563173), (65, 433210), (130, 216605), (325, 86642), (650, 43321)]