90037040

素因数分解:

$2^4\times 5^1\times {\mathrm{271}}^1\times {\mathrm{4153}}^1$

素因数の和:4437

約数の個数: 40

約数和(自身を含む): 210159168

約数和(自身を除く): 120122128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 271, 542, 1084, 1355, 2168, 2710, 4153, 4336, 5420, 8306, 10840, 16612, 20765, 21680, 33224, 41530, 66448, 83060, 166120, 332240, 1125463, 2250926, 4501852, 5627315, 9003704, 11254630, 18007408, 22509260, 45018520, 90037040]

約数ペア:

[(1, 90037040), (2, 45018520), (4, 22509260), (5, 18007408), (8, 11254630), (10, 9003704), (16, 5627315), (20, 4501852), (40, 2250926), (80, 1125463), (271, 332240), (542, 166120), (1084, 83060), (1355, 66448), (2168, 41530), (2710, 33224), (4153, 21680), (4336, 20765), (5420, 16612), (8306, 10840)]