18303020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{557}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 40497408

約数和(自身を除く): 22194388

約数列:

[1, 2, 4, 5, 10, 20, 31, 53, 62, 106, 124, 155, 212, 265, 310, 530, 557, 620, 1060, 1114, 1643, 2228, 2785, 3286, 5570, 6572, 8215, 11140, 16430, 17267, 29521, 32860, 34534, 59042, 69068, 86335, 118084, 147605, 172670, 295210, 345340, 590420, 915151, 1830302, 3660604, 4575755, 9151510, 18303020]

約数ペア:

[(1, 18303020), (2, 9151510), (4, 4575755), (5, 3660604), (10, 1830302), (20, 915151), (31, 590420), (53, 345340), (62, 295210), (106, 172670), (124, 147605), (155, 118084), (212, 86335), (265, 69068), (310, 59042), (530, 34534), (557, 32860), (620, 29521), (1060, 17267), (1114, 16430), (1643, 11140), (2228, 8215), (2785, 6572), (3286, 5570)]