90091460

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{1409}}^1$

素因数の和:1580

約数の個数: 48

約数和(自身を含む): 198979200

約数和(自身を除く): 108887740

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 139, 230, 278, 460, 556, 695, 1390, 1409, 2780, 2818, 3197, 5636, 6394, 7045, 12788, 14090, 15985, 28180, 31970, 32407, 63940, 64814, 129628, 162035, 195851, 324070, 391702, 648140, 783404, 979255, 1958510, 3917020, 4504573, 9009146, 18018292, 22522865, 45045730, 90091460]

約数ペア:

[(1, 90091460), (2, 45045730), (4, 22522865), (5, 18018292), (10, 9009146), (20, 4504573), (23, 3917020), (46, 1958510), (92, 979255), (115, 783404), (139, 648140), (230, 391702), (278, 324070), (460, 195851), (556, 162035), (695, 129628), (1390, 64814), (1409, 63940), (2780, 32407), (2818, 31970), (3197, 28180), (5636, 15985), (6394, 14090), (7045, 12788)]