64451840

素因数分解:

$2^8\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1171}}^1$

素因数の和:1235

約数の個数: 72

約数和(自身を含む): 158107488

約数和(自身を除く): 93655648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 640, 688, 860, 1171, 1280, 1376, 1720, 2342, 2752, 3440, 4684, 5504, 5855, 6880, 9368, 11008, 11710, 13760, 18736, 23420, 27520, 37472, 46840, 50353, 55040, 74944, 93680, 100706, 149888, 187360, 201412, 251765, 299776, 374720, 402824, 503530, 749440, 805648, 1007060, 1498880, 1611296, 2014120, 3222592, 4028240, 6445184, 8056480, 12890368, 16112960, 32225920, 64451840]

約数ペア:

[(1, 64451840), (2, 32225920), (4, 16112960), (5, 12890368), (8, 8056480), (10, 6445184), (16, 4028240), (20, 3222592), (32, 2014120), (40, 1611296), (43, 1498880), (64, 1007060), (80, 805648), (86, 749440), (128, 503530), (160, 402824), (172, 374720), (215, 299776), (256, 251765), (320, 201412), (344, 187360), (430, 149888), (640, 100706), (688, 93680), (860, 74944), (1171, 55040), (1280, 50353), (1376, 46840), (1720, 37472), (2342, 27520), (2752, 23420), (3440, 18736), (4684, 13760), (5504, 11710), (5855, 11008), (6880, 9368)]