19901016

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:329

約数の個数: 96

約数和(自身を含む): 58125600

約数和(自身を除く): 38224584

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 68, 71, 72, 102, 136, 142, 153, 204, 213, 229, 284, 306, 408, 426, 458, 568, 612, 639, 687, 852, 916, 1207, 1224, 1278, 1374, 1704, 1832, 2061, 2414, 2556, 2748, 3621, 3893, 4122, 4828, 5112, 5496, 7242, 7786, 8244, 9656, 10863, 11679, 14484, 15572, 16259, 16488, 21726, 23358, 28968, 31144, 32518, 35037, 43452, 46716, 48777, 65036, 70074, 86904, 93432, 97554, 130072, 140148, 146331, 195108, 276403, 280296, 292662, 390216, 552806, 585324, 829209, 1105612, 1170648, 1658418, 2211224, 2487627, 3316836, 4975254, 6633672, 9950508, 19901016]

約数ペア:

[(1, 19901016), (2, 9950508), (3, 6633672), (4, 4975254), (6, 3316836), (8, 2487627), (9, 2211224), (12, 1658418), (17, 1170648), (18, 1105612), (24, 829209), (34, 585324), (36, 552806), (51, 390216), (68, 292662), (71, 280296), (72, 276403), (102, 195108), (136, 146331), (142, 140148), (153, 130072), (204, 97554), (213, 93432), (229, 86904), (284, 70074), (306, 65036), (408, 48777), (426, 46716), (458, 43452), (568, 35037), (612, 32518), (639, 31144), (687, 28968), (852, 23358), (916, 21726), (1207, 16488), (1224, 16259), (1278, 15572), (1374, 14484), (1704, 11679), (1832, 10863), (2061, 9656), (2414, 8244), (2556, 7786), (2748, 7242), (3621, 5496), (3893, 5112), (4122, 4828)]