19681620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{46861}}^1$

素因数の和:46880

約数の個数: 48

約数和(自身を含む): 62982528

約数和(自身を除く): 43300908

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 46861, 93722, 140583, 187444, 234305, 281166, 328027, 468610, 562332, 656054, 702915, 937220, 984081, 1312108, 1405830, 1640135, 1968162, 2811660, 3280270, 3936324, 4920405, 6560540, 9840810, 19681620]

約数ペア:

[(1, 19681620), (2, 9840810), (3, 6560540), (4, 4920405), (5, 3936324), (6, 3280270), (7, 2811660), (10, 1968162), (12, 1640135), (14, 1405830), (15, 1312108), (20, 984081), (21, 937220), (28, 702915), (30, 656054), (35, 562332), (42, 468610), (60, 328027), (70, 281166), (84, 234305), (105, 187444), (140, 140583), (210, 93722), (420, 46861)]