27971639980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{437467}}^1$

素因数の和:437638

約数の個数: 48

約数和(自身を含む): 61735484160

約数和(自身を除く): 33763844180

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 139, 230, 278, 460, 556, 695, 1390, 2780, 3197, 6394, 12788, 15985, 31970, 63940, 437467, 874934, 1749868, 2187335, 4374670, 8749340, 10061741, 20123482, 40246964, 50308705, 60807913, 100617410, 121615826, 201234820, 243231652, 304039565, 608079130, 1216158260, 1398581999, 2797163998, 5594327996, 6992909995, 13985819990, 27971639980]

約数ペア:

[(1, 27971639980), (2, 13985819990), (4, 6992909995), (5, 5594327996), (10, 2797163998), (20, 1398581999), (23, 1216158260), (46, 608079130), (92, 304039565), (115, 243231652), (139, 201234820), (230, 121615826), (278, 100617410), (460, 60807913), (556, 50308705), (695, 40246964), (1390, 20123482), (2780, 10061741), (3197, 8749340), (6394, 4374670), (12788, 2187335), (15985, 1749868), (31970, 874934), (63940, 437467)]