28662700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:463

約数の個数: 72

約数和(自身を含む): 68995584

約数和(自身を除く): 40332884

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 71, 100, 110, 142, 220, 275, 284, 355, 367, 550, 710, 734, 781, 1100, 1420, 1468, 1562, 1775, 1835, 3124, 3550, 3670, 3905, 4037, 7100, 7340, 7810, 8074, 9175, 15620, 16148, 18350, 19525, 20185, 26057, 36700, 39050, 40370, 52114, 78100, 80740, 100925, 104228, 130285, 201850, 260570, 286627, 403700, 521140, 573254, 651425, 1146508, 1302850, 1433135, 2605700, 2866270, 5732540, 7165675, 14331350, 28662700]

約数ペア:

[(1, 28662700), (2, 14331350), (4, 7165675), (5, 5732540), (10, 2866270), (11, 2605700), (20, 1433135), (22, 1302850), (25, 1146508), (44, 651425), (50, 573254), (55, 521140), (71, 403700), (100, 286627), (110, 260570), (142, 201850), (220, 130285), (275, 104228), (284, 100925), (355, 80740), (367, 78100), (550, 52114), (710, 40370), (734, 39050), (781, 36700), (1100, 26057), (1420, 20185), (1468, 19525), (1562, 18350), (1775, 16148), (1835, 15620), (3124, 9175), (3550, 8074), (3670, 7810), (3905, 7340), (4037, 7100)]