239986516

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1409}}^1$

素因数の和:1517

約数の個数: 72

約数和(自身を含む): 540086400

約数和(自身を除く): 300099884

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 79, 98, 154, 158, 196, 308, 316, 539, 553, 869, 1078, 1106, 1409, 1738, 2156, 2212, 2818, 3476, 3871, 5636, 6083, 7742, 9863, 12166, 15484, 15499, 19726, 24332, 30998, 39452, 42581, 61996, 69041, 85162, 108493, 111311, 138082, 170324, 216986, 222622, 276164, 433972, 445244, 759451, 779177, 1224421, 1518902, 1558354, 2448842, 3037804, 3116708, 4897684, 5454239, 8570947, 10908478, 17141894, 21816956, 34283788, 59996629, 119993258, 239986516]

約数ペア:

[(1, 239986516), (2, 119993258), (4, 59996629), (7, 34283788), (11, 21816956), (14, 17141894), (22, 10908478), (28, 8570947), (44, 5454239), (49, 4897684), (77, 3116708), (79, 3037804), (98, 2448842), (154, 1558354), (158, 1518902), (196, 1224421), (308, 779177), (316, 759451), (539, 445244), (553, 433972), (869, 276164), (1078, 222622), (1106, 216986), (1409, 170324), (1738, 138082), (2156, 111311), (2212, 108493), (2818, 85162), (3476, 69041), (3871, 61996), (5636, 42581), (6083, 39452), (7742, 30998), (9863, 24332), (12166, 19726), (15484, 15499)]