20986770

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^2\times {\mathrm{73}}^1$

素因数の和:164

約数の個数: 96

約数和(自身を含む): 59971968

約数和(自身を除く): 38985198

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 37, 42, 70, 73, 74, 105, 111, 146, 185, 210, 219, 222, 259, 365, 370, 438, 511, 518, 555, 730, 777, 1022, 1095, 1110, 1295, 1369, 1533, 1554, 2190, 2555, 2590, 2701, 2738, 3066, 3885, 4107, 5110, 5402, 6845, 7665, 7770, 8103, 8214, 9583, 13505, 13690, 15330, 16206, 18907, 19166, 20535, 27010, 28749, 37814, 40515, 41070, 47915, 56721, 57498, 81030, 94535, 95830, 99937, 113442, 143745, 189070, 199874, 283605, 287490, 299811, 499685, 567210, 599622, 699559, 999370, 1399118, 1499055, 2098677, 2998110, 3497795, 4197354, 6995590, 10493385, 20986770]

約数ペア:

[(1, 20986770), (2, 10493385), (3, 6995590), (5, 4197354), (6, 3497795), (7, 2998110), (10, 2098677), (14, 1499055), (15, 1399118), (21, 999370), (30, 699559), (35, 599622), (37, 567210), (42, 499685), (70, 299811), (73, 287490), (74, 283605), (105, 199874), (111, 189070), (146, 143745), (185, 113442), (210, 99937), (219, 95830), (222, 94535), (259, 81030), (365, 57498), (370, 56721), (438, 47915), (511, 41070), (518, 40515), (555, 37814), (730, 28749), (777, 27010), (1022, 20535), (1095, 19166), (1110, 18907), (1295, 16206), (1369, 15330), (1533, 13690), (1554, 13505), (2190, 9583), (2555, 8214), (2590, 8103), (2701, 7770), (2738, 7665), (3066, 6845), (3885, 5402), (4107, 5110)]