28028390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1447}}^1$

素因数の和:1616

約数の個数: 32

約数和(自身を含む): 54734400

約数和(自身を除く): 26706010

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 1447, 1490, 1937, 2894, 3874, 7235, 9685, 14470, 18811, 19370, 37622, 94055, 188110, 215603, 431206, 1078015, 2156030, 2802839, 5605678, 14014195, 28028390]

約数ペア:

[(1, 28028390), (2, 14014195), (5, 5605678), (10, 2802839), (13, 2156030), (26, 1078015), (65, 431206), (130, 215603), (149, 188110), (298, 94055), (745, 37622), (1447, 19370), (1490, 18811), (1937, 14470), (2894, 9685), (3874, 7235)]