87171920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5827}}^1$

素因数の和:5868

約数の個数: 80

約数和(自身を含む): 234145728

約数和(自身を除く): 146973808

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1496, 1870, 2992, 3740, 5827, 7480, 11654, 14960, 23308, 29135, 46616, 58270, 64097, 93232, 99059, 116540, 128194, 198118, 233080, 256388, 320485, 396236, 466160, 495295, 512776, 640970, 792472, 990590, 1025552, 1089649, 1281940, 1584944, 1981180, 2179298, 2563880, 3962360, 4358596, 5127760, 5448245, 7924720, 8717192, 10896490, 17434384, 21792980, 43585960, 87171920]

約数ペア:

[(1, 87171920), (2, 43585960), (4, 21792980), (5, 17434384), (8, 10896490), (10, 8717192), (11, 7924720), (16, 5448245), (17, 5127760), (20, 4358596), (22, 3962360), (34, 2563880), (40, 2179298), (44, 1981180), (55, 1584944), (68, 1281940), (80, 1089649), (85, 1025552), (88, 990590), (110, 792472), (136, 640970), (170, 512776), (176, 495295), (187, 466160), (220, 396236), (272, 320485), (340, 256388), (374, 233080), (440, 198118), (680, 128194), (748, 116540), (880, 99059), (935, 93232), (1360, 64097), (1496, 58270), (1870, 46616), (2992, 29135), (3740, 23308), (5827, 14960), (7480, 11654)]