16720100

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{2741}}^1$

素因数の和:2816

約数の個数: 36

約数和(自身を含む): 36890868

約数和(自身を除く): 20170768

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 2741, 3050, 5482, 6100, 10964, 13705, 27410, 54820, 68525, 137050, 167201, 274100, 334402, 668804, 836005, 1672010, 3344020, 4180025, 8360050, 16720100]

約数ペア:

[(1, 16720100), (2, 8360050), (4, 4180025), (5, 3344020), (10, 1672010), (20, 836005), (25, 668804), (50, 334402), (61, 274100), (100, 167201), (122, 137050), (244, 68525), (305, 54820), (610, 27410), (1220, 13705), (1525, 10964), (2741, 6100), (3050, 5482)]