64671460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{809}}^1$

素因数の和:1396

約数の個数: 48

約数和(自身を含む): 155675520

約数和(自身を除く): 91004060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 571, 809, 1142, 1618, 2284, 2855, 3236, 3997, 4045, 5663, 5710, 7994, 8090, 11326, 11420, 15988, 16180, 19985, 22652, 28315, 39970, 56630, 79940, 113260, 461939, 923878, 1847756, 2309695, 3233573, 4619390, 6467146, 9238780, 12934292, 16167865, 32335730, 64671460]

約数ペア:

[(1, 64671460), (2, 32335730), (4, 16167865), (5, 12934292), (7, 9238780), (10, 6467146), (14, 4619390), (20, 3233573), (28, 2309695), (35, 1847756), (70, 923878), (140, 461939), (571, 113260), (809, 79940), (1142, 56630), (1618, 39970), (2284, 28315), (2855, 22652), (3236, 19985), (3997, 16180), (4045, 15988), (5663, 11420), (5710, 11326), (7994, 8090)]