66138880

素因数分解:

$2^8\times 5^1\times {\mathrm{163}}^1\times {\mathrm{317}}^1$

素因数の和:501

約数の個数: 72

約数和(自身を含む): 159898032

約数和(自身を除く): 93759152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 163, 256, 317, 320, 326, 634, 640, 652, 815, 1268, 1280, 1304, 1585, 1630, 2536, 2608, 3170, 3260, 5072, 5216, 6340, 6520, 10144, 10432, 12680, 13040, 20288, 20864, 25360, 26080, 40576, 41728, 50720, 51671, 52160, 81152, 101440, 103342, 104320, 202880, 206684, 208640, 258355, 405760, 413368, 516710, 826736, 1033420, 1653472, 2066840, 3306944, 4133680, 6613888, 8267360, 13227776, 16534720, 33069440, 66138880]

約数ペア:

[(1, 66138880), (2, 33069440), (4, 16534720), (5, 13227776), (8, 8267360), (10, 6613888), (16, 4133680), (20, 3306944), (32, 2066840), (40, 1653472), (64, 1033420), (80, 826736), (128, 516710), (160, 413368), (163, 405760), (256, 258355), (317, 208640), (320, 206684), (326, 202880), (634, 104320), (640, 103342), (652, 101440), (815, 81152), (1268, 52160), (1280, 51671), (1304, 50720), (1585, 41728), (1630, 40576), (2536, 26080), (2608, 25360), (3170, 20864), (3260, 20288), (5072, 13040), (5216, 12680), (6340, 10432), (6520, 10144)]