81228784

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1187}}^1$

素因数の和:1262

約数の個数: 80

約数和(自身を含む): 197987328

約数和(自身を除く): 116758544

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 47, 52, 56, 91, 94, 104, 112, 182, 188, 208, 329, 364, 376, 611, 658, 728, 752, 1187, 1222, 1316, 1456, 2374, 2444, 2632, 4277, 4748, 4888, 5264, 8309, 8554, 9496, 9776, 15431, 16618, 17108, 18992, 30862, 33236, 34216, 55789, 61724, 66472, 68432, 108017, 111578, 123448, 132944, 216034, 223156, 246896, 390523, 432068, 446312, 725257, 781046, 864136, 892624, 1450514, 1562092, 1728272, 2901028, 3124184, 5076799, 5802056, 6248368, 10153598, 11604112, 20307196, 40614392, 81228784]

約数ペア:

[(1, 81228784), (2, 40614392), (4, 20307196), (7, 11604112), (8, 10153598), (13, 6248368), (14, 5802056), (16, 5076799), (26, 3124184), (28, 2901028), (47, 1728272), (52, 1562092), (56, 1450514), (91, 892624), (94, 864136), (104, 781046), (112, 725257), (182, 446312), (188, 432068), (208, 390523), (329, 246896), (364, 223156), (376, 216034), (611, 132944), (658, 123448), (728, 111578), (752, 108017), (1187, 68432), (1222, 66472), (1316, 61724), (1456, 55789), (2374, 34216), (2444, 33236), (2632, 30862), (4277, 18992), (4748, 17108), (4888, 16618), (5264, 15431), (8309, 9776), (8554, 9496)]