15213040

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{479}}^1$

素因数の和:889

約数の個数: 40

約数和(自身を含む): 35533440

約数和(自身を除く): 20320400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 479, 794, 958, 1588, 1916, 1985, 2395, 3176, 3832, 3970, 4790, 6352, 7664, 7940, 9580, 15880, 19160, 31760, 38320, 190163, 380326, 760652, 950815, 1521304, 1901630, 3042608, 3803260, 7606520, 15213040]

約数ペア:

[(1, 15213040), (2, 7606520), (4, 3803260), (5, 3042608), (8, 1901630), (10, 1521304), (16, 950815), (20, 760652), (40, 380326), (80, 190163), (397, 38320), (479, 31760), (794, 19160), (958, 15880), (1588, 9580), (1916, 7940), (1985, 7664), (2395, 6352), (3176, 4790), (3832, 3970)]