18640672

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:126

約数の個数: 96

約数和(自身を含む): 42577920

約数和(自身を除く): 23937248

約数列:

[1, 2, 4, 8, 16, 19, 23, 31, 32, 38, 43, 46, 62, 76, 86, 92, 124, 152, 172, 184, 248, 304, 344, 368, 437, 496, 589, 608, 688, 713, 736, 817, 874, 989, 992, 1178, 1333, 1376, 1426, 1634, 1748, 1978, 2356, 2666, 2852, 3268, 3496, 3956, 4712, 5332, 5704, 6536, 6992, 7912, 9424, 10664, 11408, 13072, 13547, 13984, 15824, 18791, 18848, 21328, 22816, 25327, 26144, 27094, 30659, 31648, 37582, 42656, 50654, 54188, 61318, 75164, 101308, 108376, 122636, 150328, 202616, 216752, 245272, 300656, 405232, 433504, 490544, 582521, 601312, 810464, 981088, 1165042, 2330084, 4660168, 9320336, 18640672]

約数ペア:

[(1, 18640672), (2, 9320336), (4, 4660168), (8, 2330084), (16, 1165042), (19, 981088), (23, 810464), (31, 601312), (32, 582521), (38, 490544), (43, 433504), (46, 405232), (62, 300656), (76, 245272), (86, 216752), (92, 202616), (124, 150328), (152, 122636), (172, 108376), (184, 101308), (248, 75164), (304, 61318), (344, 54188), (368, 50654), (437, 42656), (496, 37582), (589, 31648), (608, 30659), (688, 27094), (713, 26144), (736, 25327), (817, 22816), (874, 21328), (989, 18848), (992, 18791), (1178, 15824), (1333, 13984), (1376, 13547), (1426, 13072), (1634, 11408), (1748, 10664), (1978, 9424), (2356, 7912), (2666, 6992), (2852, 6536), (3268, 5704), (3496, 5332), (3956, 4712)]