28288585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 38384640

約数和(自身を除く): 10096055

約数列:

[1, 5, 13, 31, 65, 101, 139, 155, 403, 505, 695, 1313, 1807, 2015, 3131, 4309, 6565, 9035, 14039, 15655, 21545, 40703, 56017, 70195, 182507, 203515, 280085, 435209, 912535, 2176045, 5657717, 28288585]

約数ペア:

[(1, 28288585), (5, 5657717), (13, 2176045), (31, 912535), (65, 435209), (101, 280085), (139, 203515), (155, 182507), (403, 70195), (505, 56017), (695, 40703), (1313, 21545), (1807, 15655), (2015, 14039), (3131, 9035), (4309, 6565)]