19781736

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:159

約数の個数: 128

約数和(自身を含む): 58060800

約数和(自身を除く): 38279064

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 47, 52, 57, 71, 76, 78, 94, 104, 114, 141, 142, 152, 156, 188, 213, 228, 247, 282, 284, 312, 376, 426, 456, 494, 564, 568, 611, 741, 852, 893, 923, 988, 1128, 1222, 1349, 1482, 1704, 1786, 1833, 1846, 1976, 2444, 2679, 2698, 2769, 2964, 3337, 3572, 3666, 3692, 4047, 4888, 5358, 5396, 5538, 5928, 6674, 7144, 7332, 7384, 8094, 10011, 10716, 10792, 11076, 11609, 13348, 14664, 16188, 17537, 20022, 21432, 22152, 23218, 26696, 32376, 34827, 35074, 40044, 43381, 46436, 52611, 63403, 69654, 70148, 80088, 86762, 92872, 105222, 126806, 130143, 139308, 140296, 173524, 190209, 210444, 253612, 260286, 278616, 347048, 380418, 420888, 507224, 520572, 760836, 824239, 1041144, 1521672, 1648478, 2472717, 3296956, 4945434, 6593912, 9890868, 19781736]

約数ペア:

[(1, 19781736), (2, 9890868), (3, 6593912), (4, 4945434), (6, 3296956), (8, 2472717), (12, 1648478), (13, 1521672), (19, 1041144), (24, 824239), (26, 760836), (38, 520572), (39, 507224), (47, 420888), (52, 380418), (57, 347048), (71, 278616), (76, 260286), (78, 253612), (94, 210444), (104, 190209), (114, 173524), (141, 140296), (142, 139308), (152, 130143), (156, 126806), (188, 105222), (213, 92872), (228, 86762), (247, 80088), (282, 70148), (284, 69654), (312, 63403), (376, 52611), (426, 46436), (456, 43381), (494, 40044), (564, 35074), (568, 34827), (611, 32376), (741, 26696), (852, 23218), (893, 22152), (923, 21432), (988, 20022), (1128, 17537), (1222, 16188), (1349, 14664), (1482, 13348), (1704, 11609), (1786, 11076), (1833, 10792), (1846, 10716), (1976, 10011), (2444, 8094), (2679, 7384), (2698, 7332), (2769, 7144), (2964, 6674), (3337, 5928), (3572, 5538), (3666, 5396), (3692, 5358), (4047, 4888)]