28912585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{571}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 40360320

約数和(自身を除く): 11447735

約数列:

[1, 5, 13, 19, 41, 65, 95, 205, 247, 533, 571, 779, 1235, 2665, 2855, 3895, 7423, 10127, 10849, 23411, 37115, 50635, 54245, 117055, 141037, 304343, 444809, 705185, 1521715, 2224045, 5782517, 28912585]

約数ペア:

[(1, 28912585), (5, 5782517), (13, 2224045), (19, 1521715), (41, 705185), (65, 444809), (95, 304343), (205, 141037), (247, 117055), (533, 54245), (571, 50635), (779, 37115), (1235, 23411), (2665, 10849), (2855, 10127), (3895, 7423)]