389459380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{4373}}^1$

素因数の和:4516

約数の個数: 48

約数和(自身を含む): 842852304

約数和(自身を除く): 453392924

約数列:

[1, 2, 4, 5, 10, 20, 61, 73, 122, 146, 244, 292, 305, 365, 610, 730, 1220, 1460, 4373, 4453, 8746, 8906, 17492, 17812, 21865, 22265, 43730, 44530, 87460, 89060, 266753, 319229, 533506, 638458, 1067012, 1276916, 1333765, 1596145, 2667530, 3192290, 5335060, 6384580, 19472969, 38945938, 77891876, 97364845, 194729690, 389459380]

約数ペア:

[(1, 389459380), (2, 194729690), (4, 97364845), (5, 77891876), (10, 38945938), (20, 19472969), (61, 6384580), (73, 5335060), (122, 3192290), (146, 2667530), (244, 1596145), (292, 1333765), (305, 1276916), (365, 1067012), (610, 638458), (730, 533506), (1220, 319229), (1460, 266753), (4373, 89060), (4453, 87460), (8746, 44530), (8906, 43730), (17492, 22265), (17812, 21865)]