205428496

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{709}}^1$

素因数の和:936

約数の個数: 80

約数和(自身を含む): 493024000

約数和(自身を除く): 287595504

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 199, 208, 364, 398, 709, 728, 796, 1393, 1418, 1456, 1592, 2587, 2786, 2836, 3184, 4963, 5174, 5572, 5672, 9217, 9926, 10348, 11144, 11344, 18109, 18434, 19852, 20696, 22288, 36218, 36868, 39704, 41392, 64519, 72436, 73736, 79408, 129038, 141091, 144872, 147472, 258076, 282182, 289744, 516152, 564364, 987637, 1032304, 1128728, 1834183, 1975274, 2257456, 3668366, 3950548, 7336732, 7901096, 12839281, 14673464, 15802192, 25678562, 29346928, 51357124, 102714248, 205428496]

約数ペア:

[(1, 205428496), (2, 102714248), (4, 51357124), (7, 29346928), (8, 25678562), (13, 15802192), (14, 14673464), (16, 12839281), (26, 7901096), (28, 7336732), (52, 3950548), (56, 3668366), (91, 2257456), (104, 1975274), (112, 1834183), (182, 1128728), (199, 1032304), (208, 987637), (364, 564364), (398, 516152), (709, 289744), (728, 282182), (796, 258076), (1393, 147472), (1418, 144872), (1456, 141091), (1592, 129038), (2587, 79408), (2786, 73736), (2836, 72436), (3184, 64519), (4963, 41392), (5174, 39704), (5572, 36868), (5672, 36218), (9217, 22288), (9926, 20696), (10348, 19852), (11144, 18434), (11344, 18109)]