1138280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 3024000

約数和(自身を除く): 1885720

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 199, 220, 260, 286, 398, 440, 520, 572, 715, 796, 995, 1144, 1430, 1592, 1990, 2189, 2587, 2860, 3980, 4378, 5174, 5720, 7960, 8756, 10348, 10945, 12935, 17512, 20696, 21890, 25870, 28457, 43780, 51740, 56914, 87560, 103480, 113828, 142285, 227656, 284570, 569140, 1138280]

約数ペア:

[(1, 1138280), (2, 569140), (4, 284570), (5, 227656), (8, 142285), (10, 113828), (11, 103480), (13, 87560), (20, 56914), (22, 51740), (26, 43780), (40, 28457), (44, 25870), (52, 21890), (55, 20696), (65, 17512), (88, 12935), (104, 10945), (110, 10348), (130, 8756), (143, 7960), (199, 5720), (220, 5174), (260, 4378), (286, 3980), (398, 2860), (440, 2587), (520, 2189), (572, 1990), (715, 1592), (796, 1430), (995, 1144)]