4886990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:149

約数の個数: 48

約数和(自身を含む): 9946800

約数和(自身を除く): 5059810

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 89, 95, 170, 178, 190, 289, 323, 445, 578, 646, 890, 1445, 1513, 1615, 1691, 2890, 3026, 3230, 3382, 5491, 7565, 8455, 10982, 15130, 16910, 25721, 27455, 28747, 51442, 54910, 57494, 128605, 143735, 257210, 287470, 488699, 977398, 2443495, 4886990]

約数ペア:

[(1, 4886990), (2, 2443495), (5, 977398), (10, 488699), (17, 287470), (19, 257210), (34, 143735), (38, 128605), (85, 57494), (89, 54910), (95, 51442), (170, 28747), (178, 27455), (190, 25721), (289, 16910), (323, 15130), (445, 10982), (578, 8455), (646, 7565), (890, 5491), (1445, 3382), (1513, 3230), (1615, 3026), (1691, 2890)]