20509008

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1429}}^1$

素因数の和:1476

約数の個数: 80

約数和(自身を含む): 59579520

約数和(自身を除く): 39070512

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 23, 24, 26, 39, 46, 48, 52, 69, 78, 92, 104, 138, 156, 184, 208, 276, 299, 312, 368, 552, 598, 624, 897, 1104, 1196, 1429, 1794, 2392, 2858, 3588, 4287, 4784, 5716, 7176, 8574, 11432, 14352, 17148, 18577, 22864, 32867, 34296, 37154, 55731, 65734, 68592, 74308, 98601, 111462, 131468, 148616, 197202, 222924, 262936, 297232, 394404, 427271, 445848, 525872, 788808, 854542, 891696, 1281813, 1577616, 1709084, 2563626, 3418168, 5127252, 6836336, 10254504, 20509008]

約数ペア:

[(1, 20509008), (2, 10254504), (3, 6836336), (4, 5127252), (6, 3418168), (8, 2563626), (12, 1709084), (13, 1577616), (16, 1281813), (23, 891696), (24, 854542), (26, 788808), (39, 525872), (46, 445848), (48, 427271), (52, 394404), (69, 297232), (78, 262936), (92, 222924), (104, 197202), (138, 148616), (156, 131468), (184, 111462), (208, 98601), (276, 74308), (299, 68592), (312, 65734), (368, 55731), (552, 37154), (598, 34296), (624, 32867), (897, 22864), (1104, 18577), (1196, 17148), (1429, 14352), (1794, 11432), (2392, 8574), (2858, 7176), (3588, 5716), (4287, 4784)]