20684520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{57457}}^1$

素因数の和:57474

約数の個数: 48

約数和(自身を含む): 67225860

約数和(自身を除く): 46541340

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 57457, 114914, 172371, 229828, 287285, 344742, 459656, 517113, 574570, 689484, 861855, 1034226, 1149140, 1378968, 1723710, 2068452, 2298280, 2585565, 3447420, 4136904, 5171130, 6894840, 10342260, 20684520]

約数ペア:

[(1, 20684520), (2, 10342260), (3, 6894840), (4, 5171130), (5, 4136904), (6, 3447420), (8, 2585565), (9, 2298280), (10, 2068452), (12, 1723710), (15, 1378968), (18, 1149140), (20, 1034226), (24, 861855), (30, 689484), (36, 574570), (40, 517113), (45, 459656), (60, 344742), (72, 287285), (90, 229828), (120, 172371), (180, 114914), (360, 57457)]