1646820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{1307}}^1$

素因数の和:1329

約数の個数: 72

約数和(自身を含む): 5713344

約数和(自身を除く): 4066524

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 1307, 2614, 3921, 5228, 6535, 7842, 9149, 11763, 13070, 15684, 18298, 19605, 23526, 26140, 27447, 36596, 39210, 45745, 47052, 54894, 58815, 78420, 82341, 91490, 109788, 117630, 137235, 164682, 182980, 235260, 274470, 329364, 411705, 548940, 823410, 1646820]

約数ペア:

[(1, 1646820), (2, 823410), (3, 548940), (4, 411705), (5, 329364), (6, 274470), (7, 235260), (9, 182980), (10, 164682), (12, 137235), (14, 117630), (15, 109788), (18, 91490), (20, 82341), (21, 78420), (28, 58815), (30, 54894), (35, 47052), (36, 45745), (42, 39210), (45, 36596), (60, 27447), (63, 26140), (70, 23526), (84, 19605), (90, 18298), (105, 15684), (126, 13070), (140, 11763), (180, 9149), (210, 7842), (252, 6535), (315, 5228), (420, 3921), (630, 2614), (1260, 1307)]