19998360

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{18517}}^1$

素因数の和:18537

約数の個数: 64

約数和(自身を含む): 66664800

約数和(自身を除く): 46666440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 18517, 37034, 55551, 74068, 92585, 111102, 148136, 166653, 185170, 222204, 277755, 333306, 370340, 444408, 499959, 555510, 666612, 740680, 833265, 999918, 1111020, 1333224, 1666530, 1999836, 2222040, 2499795, 3333060, 3999672, 4999590, 6666120, 9999180, 19998360]

約数ペア:

[(1, 19998360), (2, 9999180), (3, 6666120), (4, 4999590), (5, 3999672), (6, 3333060), (8, 2499795), (9, 2222040), (10, 1999836), (12, 1666530), (15, 1333224), (18, 1111020), (20, 999918), (24, 833265), (27, 740680), (30, 666612), (36, 555510), (40, 499959), (45, 444408), (54, 370340), (60, 333306), (72, 277755), (90, 222204), (108, 185170), (120, 166653), (135, 148136), (180, 111102), (216, 92585), (270, 74068), (360, 55551), (540, 37034), (1080, 18517)]