20813712

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1109}}^1$

素因数の和:1160

約数の個数: 80

約数和(自身を含む): 59460480

約数和(自身を除く): 38646768

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 23, 24, 34, 46, 48, 51, 68, 69, 92, 102, 136, 138, 184, 204, 272, 276, 368, 391, 408, 552, 782, 816, 1104, 1109, 1173, 1564, 2218, 2346, 3128, 3327, 4436, 4692, 6256, 6654, 8872, 9384, 13308, 17744, 18768, 18853, 25507, 26616, 37706, 51014, 53232, 56559, 75412, 76521, 102028, 113118, 150824, 153042, 204056, 226236, 301648, 306084, 408112, 433619, 452472, 612168, 867238, 904944, 1224336, 1300857, 1734476, 2601714, 3468952, 5203428, 6937904, 10406856, 20813712]

約数ペア:

[(1, 20813712), (2, 10406856), (3, 6937904), (4, 5203428), (6, 3468952), (8, 2601714), (12, 1734476), (16, 1300857), (17, 1224336), (23, 904944), (24, 867238), (34, 612168), (46, 452472), (48, 433619), (51, 408112), (68, 306084), (69, 301648), (92, 226236), (102, 204056), (136, 153042), (138, 150824), (184, 113118), (204, 102028), (272, 76521), (276, 75412), (368, 56559), (391, 53232), (408, 51014), (552, 37706), (782, 26616), (816, 25507), (1104, 18853), (1109, 18768), (1173, 17744), (1564, 13308), (2218, 9384), (2346, 8872), (3128, 6654), (3327, 6256), (4436, 4692)]