20474415

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1129}}^1$

素因数の和:1184

約数の個数: 48

約数和(自身を含む): 39486720

約数和(自身を除く): 19012305

約数列:

[1, 3, 5, 9, 13, 15, 31, 39, 45, 65, 93, 117, 155, 195, 279, 403, 465, 585, 1129, 1209, 1395, 2015, 3387, 3627, 5645, 6045, 10161, 14677, 16935, 18135, 34999, 44031, 50805, 73385, 104997, 132093, 174995, 220155, 314991, 454987, 524985, 660465, 1364961, 1574955, 2274935, 4094883, 6824805, 20474415]

約数ペア:

[(1, 20474415), (3, 6824805), (5, 4094883), (9, 2274935), (13, 1574955), (15, 1364961), (31, 660465), (39, 524985), (45, 454987), (65, 314991), (93, 220155), (117, 174995), (155, 132093), (195, 104997), (279, 73385), (403, 50805), (465, 44031), (585, 34999), (1129, 18135), (1209, 16935), (1395, 14677), (2015, 10161), (3387, 6045), (3627, 5645)]