127971320

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{349}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 294840000

約数和(自身を除く): 166868680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 103, 178, 206, 349, 356, 412, 445, 515, 698, 712, 824, 890, 1030, 1396, 1745, 1780, 2060, 2792, 3490, 3560, 4120, 6980, 9167, 13960, 18334, 31061, 35947, 36668, 45835, 62122, 71894, 73336, 91670, 124244, 143788, 155305, 179735, 183340, 248488, 287576, 310610, 359470, 366680, 621220, 718940, 1242440, 1437880, 3199283, 6398566, 12797132, 15996415, 25594264, 31992830, 63985660, 127971320]

約数ペア:

[(1, 127971320), (2, 63985660), (4, 31992830), (5, 25594264), (8, 15996415), (10, 12797132), (20, 6398566), (40, 3199283), (89, 1437880), (103, 1242440), (178, 718940), (206, 621220), (349, 366680), (356, 359470), (412, 310610), (445, 287576), (515, 248488), (698, 183340), (712, 179735), (824, 155305), (890, 143788), (1030, 124244), (1396, 91670), (1745, 73336), (1780, 71894), (2060, 62122), (2792, 45835), (3490, 36668), (3560, 35947), (4120, 31061), (6980, 18334), (9167, 13960)]