19455000

素因数分解:

$2^3\times 3^1\times 5^4\times {\mathrm{1297}}^1$

素因数の和:1326

約数の個数: 80

約数和(自身を含む): 60824280

約数和(自身を除く): 41369280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 625, 750, 1000, 1250, 1297, 1500, 1875, 2500, 2594, 3000, 3750, 3891, 5000, 5188, 6485, 7500, 7782, 10376, 12970, 15000, 15564, 19455, 25940, 31128, 32425, 38910, 51880, 64850, 77820, 97275, 129700, 155640, 162125, 194550, 259400, 324250, 389100, 486375, 648500, 778200, 810625, 972750, 1297000, 1621250, 1945500, 2431875, 3242500, 3891000, 4863750, 6485000, 9727500, 19455000]

約数ペア:

[(1, 19455000), (2, 9727500), (3, 6485000), (4, 4863750), (5, 3891000), (6, 3242500), (8, 2431875), (10, 1945500), (12, 1621250), (15, 1297000), (20, 972750), (24, 810625), (25, 778200), (30, 648500), (40, 486375), (50, 389100), (60, 324250), (75, 259400), (100, 194550), (120, 162125), (125, 155640), (150, 129700), (200, 97275), (250, 77820), (300, 64850), (375, 51880), (500, 38910), (600, 32425), (625, 31128), (750, 25940), (1000, 19455), (1250, 15564), (1297, 15000), (1500, 12970), (1875, 10376), (2500, 7782), (2594, 7500), (3000, 6485), (3750, 5188), (3891, 5000)]