31901792

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{347}}^1$

素因数の和:400

約数の個数: 72

約数和(自身を含む): 72217656

約数和(自身を除く): 40315864

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 169, 208, 221, 272, 338, 347, 416, 442, 544, 676, 694, 884, 1352, 1388, 1768, 2704, 2776, 2873, 3536, 4511, 5408, 5552, 5746, 5899, 7072, 9022, 11104, 11492, 11798, 18044, 22984, 23596, 36088, 45968, 47192, 58643, 72176, 76687, 91936, 94384, 117286, 144352, 153374, 188768, 234572, 306748, 469144, 613496, 938288, 996931, 1226992, 1876576, 1993862, 2453984, 3987724, 7975448, 15950896, 31901792]

約数ペア:

[(1, 31901792), (2, 15950896), (4, 7975448), (8, 3987724), (13, 2453984), (16, 1993862), (17, 1876576), (26, 1226992), (32, 996931), (34, 938288), (52, 613496), (68, 469144), (104, 306748), (136, 234572), (169, 188768), (208, 153374), (221, 144352), (272, 117286), (338, 94384), (347, 91936), (416, 76687), (442, 72176), (544, 58643), (676, 47192), (694, 45968), (884, 36088), (1352, 23596), (1388, 22984), (1768, 18044), (2704, 11798), (2776, 11492), (2873, 11104), (3536, 9022), (4511, 7072), (5408, 5899), (5552, 5746)]