90865885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{977}}^1$

素因数の和:1101

約数の個数: 32

約数和(自身を含む): 126748800

約数和(自身を除く): 35882915

約数列:

[1, 5, 11, 19, 55, 89, 95, 209, 445, 977, 979, 1045, 1691, 4885, 4895, 8455, 10747, 18563, 18601, 53735, 86953, 92815, 93005, 204193, 434765, 956483, 1020965, 1652107, 4782415, 8260535, 18173177, 90865885]

約数ペア:

[(1, 90865885), (5, 18173177), (11, 8260535), (19, 4782415), (55, 1652107), (89, 1020965), (95, 956483), (209, 434765), (445, 204193), (977, 93005), (979, 92815), (1045, 86953), (1691, 53735), (4885, 18601), (4895, 18563), (8455, 10747)]