155723920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{569}}^1$

素因数の和:904

約数の個数: 80

約数和(自身を含む): 396938880

約数和(自身を除く): 241214960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 311, 440, 569, 622, 880, 1138, 1244, 1555, 2276, 2488, 2845, 3110, 3421, 4552, 4976, 5690, 6220, 6259, 6842, 9104, 11380, 12440, 12518, 13684, 17105, 22760, 24880, 25036, 27368, 31295, 34210, 45520, 50072, 54736, 62590, 68420, 100144, 125180, 136840, 176959, 250360, 273680, 353918, 500720, 707836, 884795, 1415672, 1769590, 1946549, 2831344, 3539180, 3893098, 7078360, 7786196, 9732745, 14156720, 15572392, 19465490, 31144784, 38930980, 77861960, 155723920]

約数ペア:

[(1, 155723920), (2, 77861960), (4, 38930980), (5, 31144784), (8, 19465490), (10, 15572392), (11, 14156720), (16, 9732745), (20, 7786196), (22, 7078360), (40, 3893098), (44, 3539180), (55, 2831344), (80, 1946549), (88, 1769590), (110, 1415672), (176, 884795), (220, 707836), (311, 500720), (440, 353918), (569, 273680), (622, 250360), (880, 176959), (1138, 136840), (1244, 125180), (1555, 100144), (2276, 68420), (2488, 62590), (2845, 54736), (3110, 50072), (3421, 45520), (4552, 34210), (4976, 31295), (5690, 27368), (6220, 25036), (6259, 24880), (6842, 22760), (9104, 17105), (11380, 13684), (12440, 12518)]