77988800

素因数分解:

$2^6\times 5^2\times {\mathrm{79}}^1\times {\mathrm{617}}^1$

素因数の和:718

約数の個数: 84

約数和(自身を含む): 194645280

約数和(自身を除く): 116656480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 79, 80, 100, 158, 160, 200, 316, 320, 395, 400, 617, 632, 790, 800, 1234, 1264, 1580, 1600, 1975, 2468, 2528, 3085, 3160, 3950, 4936, 5056, 6170, 6320, 7900, 9872, 12340, 12640, 15425, 15800, 19744, 24680, 25280, 30850, 31600, 39488, 48743, 49360, 61700, 63200, 97486, 98720, 123400, 126400, 194972, 197440, 243715, 246800, 389944, 487430, 493600, 779888, 974860, 987200, 1218575, 1559776, 1949720, 2437150, 3119552, 3899440, 4874300, 7798880, 9748600, 15597760, 19497200, 38994400, 77988800]

約数ペア:

[(1, 77988800), (2, 38994400), (4, 19497200), (5, 15597760), (8, 9748600), (10, 7798880), (16, 4874300), (20, 3899440), (25, 3119552), (32, 2437150), (40, 1949720), (50, 1559776), (64, 1218575), (79, 987200), (80, 974860), (100, 779888), (158, 493600), (160, 487430), (200, 389944), (316, 246800), (320, 243715), (395, 197440), (400, 194972), (617, 126400), (632, 123400), (790, 98720), (800, 97486), (1234, 63200), (1264, 61700), (1580, 49360), (1600, 48743), (1975, 39488), (2468, 31600), (2528, 30850), (3085, 25280), (3160, 24680), (3950, 19744), (4936, 15800), (5056, 15425), (6170, 12640), (6320, 12340), (7900, 9872)]