1138720

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1$

素因数の和:673

約数の個数: 48

約数和(自身を含む): 2939328

約数和(自身を除く): 1800608

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 647, 880, 1294, 1760, 2588, 3235, 5176, 6470, 7117, 10352, 12940, 14234, 20704, 25880, 28468, 35585, 51760, 56936, 71170, 103520, 113872, 142340, 227744, 284680, 569360, 1138720]

約数ペア:

[(1, 1138720), (2, 569360), (4, 284680), (5, 227744), (8, 142340), (10, 113872), (11, 103520), (16, 71170), (20, 56936), (22, 51760), (32, 35585), (40, 28468), (44, 25880), (55, 20704), (80, 14234), (88, 12940), (110, 10352), (160, 7117), (176, 6470), (220, 5176), (352, 3235), (440, 2588), (647, 1760), (880, 1294)]