81072720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{112601}}^1$

素因数の和:112620

約数の個数: 60

約数和(自身を含む): 272271636

約数和(自身を除く): 191198916

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, 112601, 225202, 337803, 450404, 563005, 675606, 900808, 1013409, 1126010, 1351212, 1689015, 1801616, 2026818, 2252020, 2702424, 3378030, 4053636, 4504040, 5067045, 5404848, 6756060, 8107272, 9008080, 10134090, 13512120, 16214544, 20268180, 27024240, 40536360, 81072720]

約数ペア:

[(1, 81072720), (2, 40536360), (3, 27024240), (4, 20268180), (5, 16214544), (6, 13512120), (8, 10134090), (9, 9008080), (10, 8107272), (12, 6756060), (15, 5404848), (16, 5067045), (18, 4504040), (20, 4053636), (24, 3378030), (30, 2702424), (36, 2252020), (40, 2026818), (45, 1801616), (48, 1689015), (60, 1351212), (72, 1126010), (80, 1013409), (90, 900808), (120, 675606), (144, 563005), (180, 450404), (240, 337803), (360, 225202), (720, 112601)]