39903620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{389}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 88058880

約数和(自身を除く): 48155260

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 223, 230, 389, 446, 460, 778, 892, 1115, 1556, 1945, 2230, 3890, 4460, 5129, 7780, 8947, 10258, 17894, 20516, 25645, 35788, 44735, 51290, 86747, 89470, 102580, 173494, 178940, 346988, 433735, 867470, 1734940, 1995181, 3990362, 7980724, 9975905, 19951810, 39903620]

約数ペア:

[(1, 39903620), (2, 19951810), (4, 9975905), (5, 7980724), (10, 3990362), (20, 1995181), (23, 1734940), (46, 867470), (92, 433735), (115, 346988), (223, 178940), (230, 173494), (389, 102580), (446, 89470), (460, 86747), (778, 51290), (892, 44735), (1115, 35788), (1556, 25645), (1945, 20516), (2230, 17894), (3890, 10258), (4460, 8947), (5129, 7780)]