81137520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{112691}}^1$

素因数の和:112710

約数の個数: 60

約数和(自身を含む): 272489256

約数和(自身を除く): 191351736

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 112691, 225382, 338073, 450764, 563455, 676146, 901528, 1014219, 1126910, 1352292, 1690365, 1803056, 2028438, 2253820, 2704584, 3380730, 4056876, 4507640, 5071095, 5409168, 6761460, 8113752, 9015280, 10142190, 13522920, 16227504, 20284380, 27045840, 40568760, 81137520]

約数ペア:

[(1, 81137520), (2, 40568760), (3, 27045840), (4, 20284380), (5, 16227504), (6, 13522920), (8, 10142190), (9, 9015280), (10, 8113752), (12, 6761460), (15, 5409168), (16, 5071095), (18, 4507640), (20, 4056876), (24, 3380730), (30, 2704584), (36, 2253820), (40, 2028438), (45, 1803056), (48, 1690365), (60, 1352292), (72, 1126910), (80, 1014219), (90, 901528), (120, 676146), (144, 563455), (180, 450764), (240, 338073), (360, 225382), (720, 112691)]