72890517

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 123863040

約数和(自身を除く): 50972523

約数列:

[1, 3, 7, 19, 21, 31, 57, 71, 83, 93, 133, 213, 217, 249, 399, 497, 581, 589, 651, 1349, 1491, 1577, 1743, 1767, 2201, 2573, 4047, 4123, 4731, 5893, 6603, 7719, 9443, 11039, 12369, 15407, 17679, 18011, 28329, 33117, 41251, 41819, 46221, 48887, 54033, 111967, 123753, 125457, 146661, 182683, 292733, 335901, 342209, 548049, 783769, 878199, 1026627, 1278781, 2351307, 3470977, 3836343, 10412931, 24296839, 72890517]

約数ペア:

[(1, 72890517), (3, 24296839), (7, 10412931), (19, 3836343), (21, 3470977), (31, 2351307), (57, 1278781), (71, 1026627), (83, 878199), (93, 783769), (133, 548049), (213, 342209), (217, 335901), (249, 292733), (399, 182683), (497, 146661), (581, 125457), (589, 123753), (651, 111967), (1349, 54033), (1491, 48887), (1577, 46221), (1743, 41819), (1767, 41251), (2201, 33117), (2573, 28329), (4047, 18011), (4123, 17679), (4731, 15407), (5893, 12369), (6603, 11039), (7719, 9443)]