1028840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 2486700

約数和(自身を除く): 1457860

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 89, 136, 170, 178, 289, 340, 356, 445, 578, 680, 712, 890, 1156, 1445, 1513, 1780, 2312, 2890, 3026, 3560, 5780, 6052, 7565, 11560, 12104, 15130, 25721, 30260, 51442, 60520, 102884, 128605, 205768, 257210, 514420, 1028840]

約数ペア:

[(1, 1028840), (2, 514420), (4, 257210), (5, 205768), (8, 128605), (10, 102884), (17, 60520), (20, 51442), (34, 30260), (40, 25721), (68, 15130), (85, 12104), (89, 11560), (136, 7565), (170, 6052), (178, 5780), (289, 3560), (340, 3026), (356, 2890), (445, 2312), (578, 1780), (680, 1513), (712, 1445), (890, 1156)]