640845360

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{890063}}^1$

素因数の和:890082

約数の個数: 60

約数和(自身を含む): 2152174752

約数和(自身を除く): 1511329392

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, 890063, 1780126, 2670189, 3560252, 4450315, 5340378, 7120504, 8010567, 8900630, 10680756, 13350945, 14241008, 16021134, 17801260, 21361512, 26701890, 32042268, 35602520, 40052835, 42723024, 53403780, 64084536, 71205040, 80105670, 106807560, 128169072, 160211340, 213615120, 320422680, 640845360]

約数ペア:

[(1, 640845360), (2, 320422680), (3, 213615120), (4, 160211340), (5, 128169072), (6, 106807560), (8, 80105670), (9, 71205040), (10, 64084536), (12, 53403780), (15, 42723024), (16, 40052835), (18, 35602520), (20, 32042268), (24, 26701890), (30, 21361512), (36, 17801260), (40, 16021134), (45, 14241008), (48, 13350945), (60, 10680756), (72, 8900630), (80, 8010567), (90, 7120504), (120, 5340378), (144, 4450315), (180, 3560252), (240, 2670189), (360, 1780126), (720, 890063)]