21878889125

素因数分解:

$5^3\times {\mathrm{43}}^1\times {\mathrm{1249}}^1\times {\mathrm{3259}}^1$

素因数の和:4566

約数の個数: 32

約数和(自身を含む): 27970800000

約数和(自身を除く): 6091910875

約数列:

[1, 5, 25, 43, 125, 215, 1075, 1249, 3259, 5375, 6245, 16295, 31225, 53707, 81475, 140137, 156125, 268535, 407375, 700685, 1342675, 3503425, 4070491, 6713375, 17517125, 20352455, 101762275, 175031113, 508811375, 875155565, 4375777825, 21878889125]

約数ペア:

[(1, 21878889125), (5, 4375777825), (25, 875155565), (43, 508811375), (125, 175031113), (215, 101762275), (1075, 20352455), (1249, 17517125), (3259, 6713375), (5375, 4070491), (6245, 3503425), (16295, 1342675), (31225, 700685), (53707, 407375), (81475, 268535), (140137, 156125)]