81240480

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{56417}}^1$

素因数の和:56438

約数の個数: 72

約数和(自身を含む): 277238052

約数和(自身を除く): 195997572

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 56417, 112834, 169251, 225668, 282085, 338502, 451336, 507753, 564170, 677004, 846255, 902672, 1015506, 1128340, 1354008, 1692510, 1805344, 2031012, 2256680, 2538765, 2708016, 3385020, 4062024, 4513360, 5077530, 5416032, 6770040, 8124048, 9026720, 10155060, 13540080, 16248096, 20310120, 27080160, 40620240, 81240480]

約数ペア:

[(1, 81240480), (2, 40620240), (3, 27080160), (4, 20310120), (5, 16248096), (6, 13540080), (8, 10155060), (9, 9026720), (10, 8124048), (12, 6770040), (15, 5416032), (16, 5077530), (18, 4513360), (20, 4062024), (24, 3385020), (30, 2708016), (32, 2538765), (36, 2256680), (40, 2031012), (45, 1805344), (48, 1692510), (60, 1354008), (72, 1128340), (80, 1015506), (90, 902672), (96, 846255), (120, 677004), (144, 564170), (160, 507753), (180, 451336), (240, 338502), (288, 282085), (360, 225668), (480, 169251), (720, 112834), (1440, 56417)]