28136375

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:236

約数の個数: 32

約数和(自身を含む): 37200384

約数和(自身を除く): 9064009

約数列:

[1, 5, 25, 31, 53, 125, 137, 155, 265, 685, 775, 1325, 1643, 3425, 3875, 4247, 6625, 7261, 8215, 17125, 21235, 36305, 41075, 106175, 181525, 205375, 225091, 530875, 907625, 1125455, 5627275, 28136375]

約数ペア:

[(1, 28136375), (5, 5627275), (25, 1125455), (31, 907625), (53, 530875), (125, 225091), (137, 205375), (155, 181525), (265, 106175), (685, 41075), (775, 36305), (1325, 21235), (1643, 17125), (3425, 8215), (3875, 7261), (4247, 6625)]