90742175

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{2399}}^1$

素因数の和:2515

約数の個数: 24

約数和(自身を含む): 120528000

約数和(自身を除く): 29785825

約数列:

[1, 5, 17, 25, 85, 89, 425, 445, 1513, 2225, 2399, 7565, 11995, 37825, 40783, 59975, 203915, 213511, 1019575, 1067555, 3629687, 5337775, 18148435, 90742175]

約数ペア:

[(1, 90742175), (5, 18148435), (17, 5337775), (25, 3629687), (85, 1067555), (89, 1019575), (425, 213511), (445, 203915), (1513, 59975), (2225, 40783), (2399, 37825), (7565, 11995)]