1838385220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{83639}}^1$

素因数の和:83812

約数の個数: 48

約数和(自身を含む): 4440280320

約数和(自身を除く): 2601895100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 2198, 3140, 4396, 5495, 10990, 21980, 83639, 167278, 334556, 418195, 585473, 836390, 1170946, 1672780, 2341892, 2927365, 5854730, 11709460, 13131323, 26262646, 52525292, 65656615, 91919261, 131313230, 183838522, 262626460, 367677044, 459596305, 919192610, 1838385220]

約数ペア:

[(1, 1838385220), (2, 919192610), (4, 459596305), (5, 367677044), (7, 262626460), (10, 183838522), (14, 131313230), (20, 91919261), (28, 65656615), (35, 52525292), (70, 26262646), (140, 13131323), (157, 11709460), (314, 5854730), (628, 2927365), (785, 2341892), (1099, 1672780), (1570, 1170946), (2198, 836390), (3140, 585473), (4396, 418195), (5495, 334556), (10990, 167278), (21980, 83639)]