81738270

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21121}}^1$

素因数の和:21177

約数の個数: 48

約数和(自身を含む): 217472112

約数和(自身を除く): 135733842

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 774, 1290, 1935, 3870, 21121, 42242, 63363, 105605, 126726, 190089, 211210, 316815, 380178, 633630, 908203, 950445, 1816406, 1900890, 2724609, 4541015, 5449218, 8173827, 9082030, 13623045, 16347654, 27246090, 40869135, 81738270]

約数ペア:

[(1, 81738270), (2, 40869135), (3, 27246090), (5, 16347654), (6, 13623045), (9, 9082030), (10, 8173827), (15, 5449218), (18, 4541015), (30, 2724609), (43, 1900890), (45, 1816406), (86, 950445), (90, 908203), (129, 633630), (215, 380178), (258, 316815), (387, 211210), (430, 190089), (645, 126726), (774, 105605), (1290, 63363), (1935, 42242), (3870, 21121)]