66394280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{397}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 155172240

約数和(自身を除く): 88777960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 113, 148, 185, 226, 296, 370, 397, 452, 565, 740, 794, 904, 1130, 1480, 1588, 1985, 2260, 3176, 3970, 4181, 4520, 7940, 8362, 14689, 15880, 16724, 20905, 29378, 33448, 41810, 44861, 58756, 73445, 83620, 89722, 117512, 146890, 167240, 179444, 224305, 293780, 358888, 448610, 587560, 897220, 1659857, 1794440, 3319714, 6639428, 8299285, 13278856, 16598570, 33197140, 66394280]

約数ペア:

[(1, 66394280), (2, 33197140), (4, 16598570), (5, 13278856), (8, 8299285), (10, 6639428), (20, 3319714), (37, 1794440), (40, 1659857), (74, 897220), (113, 587560), (148, 448610), (185, 358888), (226, 293780), (296, 224305), (370, 179444), (397, 167240), (452, 146890), (565, 117512), (740, 89722), (794, 83620), (904, 73445), (1130, 58756), (1480, 44861), (1588, 41810), (1985, 33448), (2260, 29378), (3176, 20905), (3970, 16724), (4181, 15880), (4520, 14689), (7940, 8362)]