1247641520

素因数分解:

$2^4\times 5^1\times {\mathrm{15595519}}^1$

素因数の和:15595532

約数の個数: 20

約数和(自身を含む): 2900766720

約数和(自身を除く): 1653125200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15595519, 31191038, 62382076, 77977595, 124764152, 155955190, 249528304, 311910380, 623820760, 1247641520]

約数ペア:

[(1, 1247641520), (2, 623820760), (4, 311910380), (5, 249528304), (8, 155955190), (10, 124764152), (16, 77977595), (20, 62382076), (40, 31191038), (80, 15595519)]