11939980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2417}}^1$

素因数の和:2458

約数の個数: 48

約数和(自身を含む): 28435680

約数和(自身を除く): 16495700

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2417, 2470, 4834, 4940, 9668, 12085, 24170, 31421, 45923, 48340, 62842, 91846, 125684, 157105, 183692, 229615, 314210, 459230, 596999, 628420, 918460, 1193998, 2387996, 2984995, 5969990, 11939980]

約数ペア:

[(1, 11939980), (2, 5969990), (4, 2984995), (5, 2387996), (10, 1193998), (13, 918460), (19, 628420), (20, 596999), (26, 459230), (38, 314210), (52, 229615), (65, 183692), (76, 157105), (95, 125684), (130, 91846), (190, 62842), (247, 48340), (260, 45923), (380, 31421), (494, 24170), (988, 12085), (1235, 9668), (2417, 4940), (2470, 4834)]