64888240

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:398

約数の個数: 80

約数和(自身を含む): 157239936

約数和(自身を除く): 92351696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 73, 80, 82, 146, 164, 205, 271, 292, 328, 365, 410, 542, 584, 656, 730, 820, 1084, 1168, 1355, 1460, 1640, 2168, 2710, 2920, 2993, 3280, 4336, 5420, 5840, 5986, 10840, 11111, 11972, 14965, 19783, 21680, 22222, 23944, 29930, 39566, 44444, 47888, 55555, 59860, 79132, 88888, 98915, 111110, 119720, 158264, 177776, 197830, 222220, 239440, 316528, 395660, 444440, 791320, 811103, 888880, 1582640, 1622206, 3244412, 4055515, 6488824, 8111030, 12977648, 16222060, 32444120, 64888240]

約数ペア:

[(1, 64888240), (2, 32444120), (4, 16222060), (5, 12977648), (8, 8111030), (10, 6488824), (16, 4055515), (20, 3244412), (40, 1622206), (41, 1582640), (73, 888880), (80, 811103), (82, 791320), (146, 444440), (164, 395660), (205, 316528), (271, 239440), (292, 222220), (328, 197830), (365, 177776), (410, 158264), (542, 119720), (584, 111110), (656, 98915), (730, 88888), (820, 79132), (1084, 59860), (1168, 55555), (1355, 47888), (1460, 44444), (1640, 39566), (2168, 29930), (2710, 23944), (2920, 22222), (2993, 21680), (3280, 19783), (4336, 14965), (5420, 11972), (5840, 11111), (5986, 10840)]