21783750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:219

約数の個数: 80

約数和(自身を含む): 56269488

約数和(自身を除く): 34485738

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 37, 50, 74, 75, 111, 125, 150, 157, 185, 222, 250, 314, 370, 375, 471, 555, 625, 750, 785, 925, 942, 1110, 1250, 1570, 1850, 1875, 2355, 2775, 3750, 3925, 4625, 4710, 5550, 5809, 7850, 9250, 11618, 11775, 13875, 17427, 19625, 23125, 23550, 27750, 29045, 34854, 39250, 46250, 58090, 58875, 69375, 87135, 98125, 117750, 138750, 145225, 174270, 196250, 290450, 294375, 435675, 588750, 726125, 871350, 1452250, 2178375, 3630625, 4356750, 7261250, 10891875, 21783750]

約数ペア:

[(1, 21783750), (2, 10891875), (3, 7261250), (5, 4356750), (6, 3630625), (10, 2178375), (15, 1452250), (25, 871350), (30, 726125), (37, 588750), (50, 435675), (74, 294375), (75, 290450), (111, 196250), (125, 174270), (150, 145225), (157, 138750), (185, 117750), (222, 98125), (250, 87135), (314, 69375), (370, 58875), (375, 58090), (471, 46250), (555, 39250), (625, 34854), (750, 29045), (785, 27750), (925, 23550), (942, 23125), (1110, 19625), (1250, 17427), (1570, 13875), (1850, 11775), (1875, 11618), (2355, 9250), (2775, 7850), (3750, 5809), (3925, 5550), (4625, 4710)]