2021640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{991}}^1$

素因数の和:1022

約数の個数: 64

約数和(自身を含む): 6428160

約数和(自身を除く): 4406520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 991, 1020, 1982, 2040, 2973, 3964, 4955, 5946, 7928, 9910, 11892, 14865, 16847, 19820, 23784, 29730, 33694, 39640, 50541, 59460, 67388, 84235, 101082, 118920, 134776, 168470, 202164, 252705, 336940, 404328, 505410, 673880, 1010820, 2021640]

約数ペア:

[(1, 2021640), (2, 1010820), (3, 673880), (4, 505410), (5, 404328), (6, 336940), (8, 252705), (10, 202164), (12, 168470), (15, 134776), (17, 118920), (20, 101082), (24, 84235), (30, 67388), (34, 59460), (40, 50541), (51, 39640), (60, 33694), (68, 29730), (85, 23784), (102, 19820), (120, 16847), (136, 14865), (170, 11892), (204, 9910), (255, 7928), (340, 5946), (408, 4955), (510, 3964), (680, 2973), (991, 2040), (1020, 1982)]