1999275

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:116

約数の個数: 48

約数和(自身を含む): 3690240

約数和(自身を除く): 1690965

約数列:

[1, 3, 5, 15, 19, 23, 25, 57, 61, 69, 75, 95, 115, 183, 285, 305, 345, 437, 475, 575, 915, 1159, 1311, 1403, 1425, 1525, 1725, 2185, 3477, 4209, 4575, 5795, 6555, 7015, 10925, 17385, 21045, 26657, 28975, 32775, 35075, 79971, 86925, 105225, 133285, 399855, 666425, 1999275]

約数ペア:

[(1, 1999275), (3, 666425), (5, 399855), (15, 133285), (19, 105225), (23, 86925), (25, 79971), (57, 35075), (61, 32775), (69, 28975), (75, 26657), (95, 21045), (115, 17385), (183, 10925), (285, 7015), (305, 6555), (345, 5795), (437, 4575), (475, 4209), (575, 3477), (915, 2185), (1159, 1725), (1311, 1525), (1403, 1425)]