791440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{761}}^1$

素因数の和:787

約数の個数: 40

約数和(自身を含む): 1984248

約数和(自身を除く): 1192808

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 761, 1040, 1522, 3044, 3805, 6088, 7610, 9893, 12176, 15220, 19786, 30440, 39572, 49465, 60880, 79144, 98930, 158288, 197860, 395720, 791440]

約数ペア:

[(1, 791440), (2, 395720), (4, 197860), (5, 158288), (8, 98930), (10, 79144), (13, 60880), (16, 49465), (20, 39572), (26, 30440), (40, 19786), (52, 15220), (65, 12176), (80, 9893), (104, 7610), (130, 6088), (208, 3805), (260, 3044), (520, 1522), (761, 1040)]