19937520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{27691}}^1$

素因数の和:27710

約数の個数: 60

約数和(自身を含む): 66959256

約数和(自身を除く): 47021736

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, 27691, 55382, 83073, 110764, 138455, 166146, 221528, 249219, 276910, 332292, 415365, 443056, 498438, 553820, 664584, 830730, 996876, 1107640, 1246095, 1329168, 1661460, 1993752, 2215280, 2492190, 3322920, 3987504, 4984380, 6645840, 9968760, 19937520]

約数ペア:

[(1, 19937520), (2, 9968760), (3, 6645840), (4, 4984380), (5, 3987504), (6, 3322920), (8, 2492190), (9, 2215280), (10, 1993752), (12, 1661460), (15, 1329168), (16, 1246095), (18, 1107640), (20, 996876), (24, 830730), (30, 664584), (36, 553820), (40, 498438), (45, 443056), (48, 415365), (60, 332292), (72, 276910), (80, 249219), (90, 221528), (120, 166146), (144, 138455), (180, 110764), (240, 83073), (360, 55382), (720, 27691)]