20211020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{829}}^1$

素因数の和:914

約数の個数: 48

約数和(自身を含む): 45178560

約数和(自身を除く): 24967540

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 53, 92, 106, 115, 212, 230, 265, 460, 530, 829, 1060, 1219, 1658, 2438, 3316, 4145, 4876, 6095, 8290, 12190, 16580, 19067, 24380, 38134, 43937, 76268, 87874, 95335, 175748, 190670, 219685, 381340, 439370, 878740, 1010551, 2021102, 4042204, 5052755, 10105510, 20211020]

約数ペア:

[(1, 20211020), (2, 10105510), (4, 5052755), (5, 4042204), (10, 2021102), (20, 1010551), (23, 878740), (46, 439370), (53, 381340), (92, 219685), (106, 190670), (115, 175748), (212, 95335), (230, 87874), (265, 76268), (460, 43937), (530, 38134), (829, 24380), (1060, 19067), (1219, 16580), (1658, 12190), (2438, 8290), (3316, 6095), (4145, 4876)]