81253690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{307}}^1$

素因数の和:539

約数の個数: 64

約数和(自身を含む): 177408000

約数和(自身を除く): 96154310

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 199, 266, 307, 398, 614, 665, 995, 1330, 1393, 1535, 1990, 2149, 2786, 3070, 3781, 4298, 5833, 6965, 7562, 10745, 11666, 13930, 18905, 21490, 26467, 29165, 37810, 40831, 52934, 58330, 61093, 81662, 122186, 132335, 204155, 264670, 305465, 408310, 427651, 610930, 855302, 1160767, 2138255, 2321534, 4276510, 5803835, 8125369, 11607670, 16250738, 40626845, 81253690]

約数ペア:

[(1, 81253690), (2, 40626845), (5, 16250738), (7, 11607670), (10, 8125369), (14, 5803835), (19, 4276510), (35, 2321534), (38, 2138255), (70, 1160767), (95, 855302), (133, 610930), (190, 427651), (199, 408310), (266, 305465), (307, 264670), (398, 204155), (614, 132335), (665, 122186), (995, 81662), (1330, 61093), (1393, 58330), (1535, 52934), (1990, 40831), (2149, 37810), (2786, 29165), (3070, 26467), (3781, 21490), (4298, 18905), (5833, 13930), (6965, 11666), (7562, 10745)]