19882280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{619}}^1$

素因数の和:714

約数の個数: 64

約数和(自身を含む): 49550400

約数和(自身を除く): 29668120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 73, 88, 110, 146, 220, 292, 365, 440, 584, 619, 730, 803, 1238, 1460, 1606, 2476, 2920, 3095, 3212, 4015, 4952, 6190, 6424, 6809, 8030, 12380, 13618, 16060, 24760, 27236, 32120, 34045, 45187, 54472, 68090, 90374, 136180, 180748, 225935, 272360, 361496, 451870, 497057, 903740, 994114, 1807480, 1988228, 2485285, 3976456, 4970570, 9941140, 19882280]

約数ペア:

[(1, 19882280), (2, 9941140), (4, 4970570), (5, 3976456), (8, 2485285), (10, 1988228), (11, 1807480), (20, 994114), (22, 903740), (40, 497057), (44, 451870), (55, 361496), (73, 272360), (88, 225935), (110, 180748), (146, 136180), (220, 90374), (292, 68090), (365, 54472), (440, 45187), (584, 34045), (619, 32120), (730, 27236), (803, 24760), (1238, 16060), (1460, 13618), (1606, 12380), (2476, 8030), (2920, 6809), (3095, 6424), (3212, 6190), (4015, 4952)]