20408100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{1153}}^1$

素因数の和:1229

約数の個数: 72

約数和(自身を含む): 60100320

約数和(自身を除く): 39692220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 59, 60, 75, 100, 118, 150, 177, 236, 295, 300, 354, 590, 708, 885, 1153, 1180, 1475, 1770, 2306, 2950, 3459, 3540, 4425, 4612, 5765, 5900, 6918, 8850, 11530, 13836, 17295, 17700, 23060, 28825, 34590, 57650, 68027, 69180, 86475, 115300, 136054, 172950, 204081, 272108, 340135, 345900, 408162, 680270, 816324, 1020405, 1360540, 1700675, 2040810, 3401350, 4081620, 5102025, 6802700, 10204050, 20408100]

約数ペア:

[(1, 20408100), (2, 10204050), (3, 6802700), (4, 5102025), (5, 4081620), (6, 3401350), (10, 2040810), (12, 1700675), (15, 1360540), (20, 1020405), (25, 816324), (30, 680270), (50, 408162), (59, 345900), (60, 340135), (75, 272108), (100, 204081), (118, 172950), (150, 136054), (177, 115300), (236, 86475), (295, 69180), (300, 68027), (354, 57650), (590, 34590), (708, 28825), (885, 23060), (1153, 17700), (1180, 17295), (1475, 13836), (1770, 11530), (2306, 8850), (2950, 6918), (3459, 5900), (3540, 5765), (4425, 4612)]