80473860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{691}}^1$

素因数の和:1353

約数の個数: 72

約数和(自身を含む): 244835136

約数和(自身を除く): 164361276

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 647, 691, 1294, 1382, 1941, 2073, 2588, 2764, 3235, 3455, 3882, 4146, 5823, 6219, 6470, 6910, 7764, 8292, 9705, 10365, 11646, 12438, 12940, 13820, 19410, 20730, 23292, 24876, 29115, 31095, 38820, 41460, 58230, 62190, 116460, 124380, 447077, 894154, 1341231, 1788308, 2235385, 2682462, 4023693, 4470770, 5364924, 6706155, 8047386, 8941540, 13412310, 16094772, 20118465, 26824620, 40236930, 80473860]

約数ペア:

[(1, 80473860), (2, 40236930), (3, 26824620), (4, 20118465), (5, 16094772), (6, 13412310), (9, 8941540), (10, 8047386), (12, 6706155), (15, 5364924), (18, 4470770), (20, 4023693), (30, 2682462), (36, 2235385), (45, 1788308), (60, 1341231), (90, 894154), (180, 447077), (647, 124380), (691, 116460), (1294, 62190), (1382, 58230), (1941, 41460), (2073, 38820), (2588, 31095), (2764, 29115), (3235, 24876), (3455, 23292), (3882, 20730), (4146, 19410), (5823, 13820), (6219, 12940), (6470, 12438), (6910, 11646), (7764, 10365), (8292, 9705)]