20488380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{839}}^1$

素因数の和:899

約数の個数: 96

約数和(自身を含む): 64350720

約数和(自身を除く): 43862340

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 37, 44, 55, 60, 66, 74, 110, 111, 132, 148, 165, 185, 220, 222, 330, 370, 407, 444, 555, 660, 740, 814, 839, 1110, 1221, 1628, 1678, 2035, 2220, 2442, 2517, 3356, 4070, 4195, 4884, 5034, 6105, 8140, 8390, 9229, 10068, 12210, 12585, 16780, 18458, 24420, 25170, 27687, 31043, 36916, 46145, 50340, 55374, 62086, 92290, 93129, 110748, 124172, 138435, 155215, 184580, 186258, 276870, 310430, 341473, 372516, 465645, 553740, 620860, 682946, 931290, 1024419, 1365892, 1707365, 1862580, 2048838, 3414730, 4097676, 5122095, 6829460, 10244190, 20488380]

約数ペア:

[(1, 20488380), (2, 10244190), (3, 6829460), (4, 5122095), (5, 4097676), (6, 3414730), (10, 2048838), (11, 1862580), (12, 1707365), (15, 1365892), (20, 1024419), (22, 931290), (30, 682946), (33, 620860), (37, 553740), (44, 465645), (55, 372516), (60, 341473), (66, 310430), (74, 276870), (110, 186258), (111, 184580), (132, 155215), (148, 138435), (165, 124172), (185, 110748), (220, 93129), (222, 92290), (330, 62086), (370, 55374), (407, 50340), (444, 46145), (555, 36916), (660, 31043), (740, 27687), (814, 25170), (839, 24420), (1110, 18458), (1221, 16780), (1628, 12585), (1678, 12210), (2035, 10068), (2220, 9229), (2442, 8390), (2517, 8140), (3356, 6105), (4070, 5034), (4195, 4884)]