987548890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{443}}^1\times {\mathrm{7687}}^1$

素因数の和:8166

約数の個数: 32

約数和(自身を含む): 1843274880

約数和(自身を除く): 855725990

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 443, 886, 2215, 4430, 7687, 12847, 15374, 25694, 38435, 64235, 76870, 128470, 222923, 445846, 1114615, 2229230, 3405341, 6810682, 17026705, 34053410, 98754889, 197509778, 493774445, 987548890]

約数ペア:

[(1, 987548890), (2, 493774445), (5, 197509778), (10, 98754889), (29, 34053410), (58, 17026705), (145, 6810682), (290, 3405341), (443, 2229230), (886, 1114615), (2215, 445846), (4430, 222923), (7687, 128470), (12847, 76870), (15374, 64235), (25694, 38435)]