425980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1$

素因数の和:106

約数の個数: 36

約数和(自身を含む): 960120

約数和(自身を除く): 534140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 59, 76, 95, 118, 190, 236, 295, 361, 380, 590, 722, 1121, 1180, 1444, 1805, 2242, 3610, 4484, 5605, 7220, 11210, 21299, 22420, 42598, 85196, 106495, 212990, 425980]

約数ペア:

[(1, 425980), (2, 212990), (4, 106495), (5, 85196), (10, 42598), (19, 22420), (20, 21299), (38, 11210), (59, 7220), (76, 5605), (95, 4484), (118, 3610), (190, 2242), (236, 1805), (295, 1444), (361, 1180), (380, 1121), (590, 722)]