28735780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{379}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 64350720

約数和(自身を除く): 35614940

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 223, 340, 379, 446, 758, 892, 1115, 1516, 1895, 2230, 3790, 3791, 4460, 6443, 7580, 7582, 12886, 15164, 18955, 25772, 32215, 37910, 64430, 75820, 84517, 128860, 169034, 338068, 422585, 845170, 1436789, 1690340, 2873578, 5747156, 7183945, 14367890, 28735780]

約数ペア:

[(1, 28735780), (2, 14367890), (4, 7183945), (5, 5747156), (10, 2873578), (17, 1690340), (20, 1436789), (34, 845170), (68, 422585), (85, 338068), (170, 169034), (223, 128860), (340, 84517), (379, 75820), (446, 64430), (758, 37910), (892, 32215), (1115, 25772), (1516, 18955), (1895, 15164), (2230, 12886), (3790, 7582), (3791, 7580), (4460, 6443)]