395720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{761}}^1$

素因数の和:785

約数の個数: 32

約数和(自身を含む): 960120

約数和(自身を除く): 564400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 761, 1522, 3044, 3805, 6088, 7610, 9893, 15220, 19786, 30440, 39572, 49465, 79144, 98930, 197860, 395720]

約数ペア:

[(1, 395720), (2, 197860), (4, 98930), (5, 79144), (8, 49465), (10, 39572), (13, 30440), (20, 19786), (26, 15220), (40, 9893), (52, 7610), (65, 6088), (104, 3805), (130, 3044), (260, 1522), (520, 761)]