20702100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{151}}^1\times {\mathrm{457}}^1$

素因数の和:625

約数の個数: 72

約数和(自身を含む): 60426688

約数和(自身を除く): 39724588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 151, 300, 302, 453, 457, 604, 755, 906, 914, 1371, 1510, 1812, 1828, 2265, 2285, 2742, 3020, 3775, 4530, 4570, 5484, 6855, 7550, 9060, 9140, 11325, 11425, 13710, 15100, 22650, 22850, 27420, 34275, 45300, 45700, 68550, 69007, 137100, 138014, 207021, 276028, 345035, 414042, 690070, 828084, 1035105, 1380140, 1725175, 2070210, 3450350, 4140420, 5175525, 6900700, 10351050, 20702100]

約数ペア:

[(1, 20702100), (2, 10351050), (3, 6900700), (4, 5175525), (5, 4140420), (6, 3450350), (10, 2070210), (12, 1725175), (15, 1380140), (20, 1035105), (25, 828084), (30, 690070), (50, 414042), (60, 345035), (75, 276028), (100, 207021), (150, 138014), (151, 137100), (300, 69007), (302, 68550), (453, 45700), (457, 45300), (604, 34275), (755, 27420), (906, 22850), (914, 22650), (1371, 15100), (1510, 13710), (1812, 11425), (1828, 11325), (2265, 9140), (2285, 9060), (2742, 7550), (3020, 6855), (3775, 5484), (4530, 4570)]