28378454

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 47851776

約数和(自身を除く): 19473322

約数列:

[1, 2, 13, 26, 31, 62, 137, 257, 274, 403, 514, 806, 1781, 3341, 3562, 4247, 6682, 7967, 8494, 15934, 35209, 55211, 70418, 103571, 110422, 207142, 457717, 915434, 1091479, 2182958, 14189227, 28378454]

約数ペア:

[(1, 28378454), (2, 14189227), (13, 2182958), (26, 1091479), (31, 915434), (62, 457717), (137, 207142), (257, 110422), (274, 103571), (403, 70418), (514, 55211), (806, 35209), (1781, 15934), (3341, 8494), (3562, 7967), (4247, 6682)]