78351640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{115223}}^1$

素因数の和:115251

約数の個数: 32

約数和(自身を含む): 186662880

約数和(自身を除く): 108311240

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 115223, 230446, 460892, 576115, 921784, 1152230, 1958791, 2304460, 3917582, 4608920, 7835164, 9793955, 15670328, 19587910, 39175820, 78351640]

約数ペア:

[(1, 78351640), (2, 39175820), (4, 19587910), (5, 15670328), (8, 9793955), (10, 7835164), (17, 4608920), (20, 3917582), (34, 2304460), (40, 1958791), (68, 1152230), (85, 921784), (136, 576115), (170, 460892), (340, 230446), (680, 115223)]