18985968

素因数分解:

$2^4\times 3^3\times {\mathrm{71}}^1\times {\mathrm{619}}^1$

素因数の和:707

約数の個数: 80

約数和(自身を含む): 55353600

約数和(自身を除く): 36367632

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 71, 72, 108, 142, 144, 213, 216, 284, 426, 432, 568, 619, 639, 852, 1136, 1238, 1278, 1704, 1857, 1917, 2476, 2556, 3408, 3714, 3834, 4952, 5112, 5571, 7428, 7668, 9904, 10224, 11142, 14856, 15336, 16713, 22284, 29712, 30672, 33426, 43949, 44568, 66852, 87898, 89136, 131847, 133704, 175796, 263694, 267408, 351592, 395541, 527388, 703184, 791082, 1054776, 1186623, 1582164, 2109552, 2373246, 3164328, 4746492, 6328656, 9492984, 18985968]

約数ペア:

[(1, 18985968), (2, 9492984), (3, 6328656), (4, 4746492), (6, 3164328), (8, 2373246), (9, 2109552), (12, 1582164), (16, 1186623), (18, 1054776), (24, 791082), (27, 703184), (36, 527388), (48, 395541), (54, 351592), (71, 267408), (72, 263694), (108, 175796), (142, 133704), (144, 131847), (213, 89136), (216, 87898), (284, 66852), (426, 44568), (432, 43949), (568, 33426), (619, 30672), (639, 29712), (852, 22284), (1136, 16713), (1238, 15336), (1278, 14856), (1704, 11142), (1857, 10224), (1917, 9904), (2476, 7668), (2556, 7428), (3408, 5571), (3714, 5112), (3834, 4952)]