79887860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307261}}^1$

素因数の和:307283

約数の個数: 24

約数和(自身を含む): 180670056

約数和(自身を除く): 100782196

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 307261, 614522, 1229044, 1536305, 3072610, 3994393, 6145220, 7988786, 15977572, 19971965, 39943930, 79887860]

約数ペア:

[(1, 79887860), (2, 39943930), (4, 19971965), (5, 15977572), (10, 7988786), (13, 6145220), (20, 3994393), (26, 3072610), (52, 1536305), (65, 1229044), (130, 614522), (260, 307261)]