20718288

素因数分解:

$2^4\times 3^3\times {\mathrm{199}}^1\times {\mathrm{241}}^1$

素因数の和:457

約数の個数: 80

約数和(自身を含む): 60016000

約数和(自身を除く): 39297712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 199, 216, 241, 398, 432, 482, 597, 723, 796, 964, 1194, 1446, 1592, 1791, 1928, 2169, 2388, 2892, 3184, 3582, 3856, 4338, 4776, 5373, 5784, 6507, 7164, 8676, 9552, 10746, 11568, 13014, 14328, 17352, 21492, 26028, 28656, 34704, 42984, 47959, 52056, 85968, 95918, 104112, 143877, 191836, 287754, 383672, 431631, 575508, 767344, 863262, 1151016, 1294893, 1726524, 2302032, 2589786, 3453048, 5179572, 6906096, 10359144, 20718288]

約数ペア:

[(1, 20718288), (2, 10359144), (3, 6906096), (4, 5179572), (6, 3453048), (8, 2589786), (9, 2302032), (12, 1726524), (16, 1294893), (18, 1151016), (24, 863262), (27, 767344), (36, 575508), (48, 431631), (54, 383672), (72, 287754), (108, 191836), (144, 143877), (199, 104112), (216, 95918), (241, 85968), (398, 52056), (432, 47959), (482, 42984), (597, 34704), (723, 28656), (796, 26028), (964, 21492), (1194, 17352), (1446, 14328), (1592, 13014), (1791, 11568), (1928, 10746), (2169, 9552), (2388, 8676), (2892, 7164), (3184, 6507), (3582, 5784), (3856, 5373), (4338, 4776)]