245429480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197927}}^1$

素因数の和:197969

約数の個数: 32

約数和(自身を含む): 570032640

約数和(自身を除く): 324603160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 197927, 395854, 791708, 989635, 1583416, 1979270, 3958540, 6135737, 7917080, 12271474, 24542948, 30678685, 49085896, 61357370, 122714740, 245429480]

約数ペア:

[(1, 245429480), (2, 122714740), (4, 61357370), (5, 49085896), (8, 30678685), (10, 24542948), (20, 12271474), (31, 7917080), (40, 6135737), (62, 3958540), (124, 1979270), (155, 1583416), (248, 989635), (310, 791708), (620, 395854), (1240, 197927)]