240042180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{81647}}^1$

素因数の和:81673

約数の個数: 72

約数和(自身を含む): 781861248

約数和(自身を除く): 541819068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 81647, 163294, 244941, 326588, 408235, 489882, 571529, 816470, 979764, 1143058, 1224705, 1632940, 1714587, 2286116, 2449410, 2857645, 3429174, 4000703, 4898820, 5715290, 6858348, 8001406, 8572935, 11430580, 12002109, 16002812, 17145870, 20003515, 24004218, 34291740, 40007030, 48008436, 60010545, 80014060, 120021090, 240042180]

約数ペア:

[(1, 240042180), (2, 120021090), (3, 80014060), (4, 60010545), (5, 48008436), (6, 40007030), (7, 34291740), (10, 24004218), (12, 20003515), (14, 17145870), (15, 16002812), (20, 12002109), (21, 11430580), (28, 8572935), (30, 8001406), (35, 6858348), (42, 5715290), (49, 4898820), (60, 4000703), (70, 3429174), (84, 2857645), (98, 2449410), (105, 2286116), (140, 1714587), (147, 1632940), (196, 1224705), (210, 1143058), (245, 979764), (294, 816470), (420, 571529), (490, 489882), (588, 408235), (735, 326588), (980, 244941), (1470, 163294), (2940, 81647)]