64971880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{229}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 151275600

約数和(自身を除く): 86303720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 173, 205, 229, 328, 346, 410, 458, 692, 820, 865, 916, 1145, 1384, 1640, 1730, 1832, 2290, 3460, 4580, 6920, 7093, 9160, 9389, 14186, 18778, 28372, 35465, 37556, 39617, 46945, 56744, 70930, 75112, 79234, 93890, 141860, 158468, 187780, 198085, 283720, 316936, 375560, 396170, 792340, 1584680, 1624297, 3248594, 6497188, 8121485, 12994376, 16242970, 32485940, 64971880]

約数ペア:

[(1, 64971880), (2, 32485940), (4, 16242970), (5, 12994376), (8, 8121485), (10, 6497188), (20, 3248594), (40, 1624297), (41, 1584680), (82, 792340), (164, 396170), (173, 375560), (205, 316936), (229, 283720), (328, 198085), (346, 187780), (410, 158468), (458, 141860), (692, 93890), (820, 79234), (865, 75112), (916, 70930), (1145, 56744), (1384, 46945), (1640, 39617), (1730, 37556), (1832, 35465), (2290, 28372), (3460, 18778), (4580, 14186), (6920, 9389), (7093, 9160)]