20625210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2269}}^1$

素因数の和:2383

約数の個数: 48

約数和(自身を含む): 54180360

約数和(自身を除く): 33555150

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 101, 202, 303, 505, 606, 909, 1010, 1515, 1818, 2269, 3030, 4538, 4545, 6807, 9090, 11345, 13614, 20421, 22690, 34035, 40842, 68070, 102105, 204210, 229169, 458338, 687507, 1145845, 1375014, 2062521, 2291690, 3437535, 4125042, 6875070, 10312605, 20625210]

約数ペア:

[(1, 20625210), (2, 10312605), (3, 6875070), (5, 4125042), (6, 3437535), (9, 2291690), (10, 2062521), (15, 1375014), (18, 1145845), (30, 687507), (45, 458338), (90, 229169), (101, 204210), (202, 102105), (303, 68070), (505, 40842), (606, 34035), (909, 22690), (1010, 20421), (1515, 13614), (1818, 11345), (2269, 9090), (3030, 6807), (4538, 4545)]