18780000

素因数分解:

$2^5\times 3^1\times 5^4\times {\mathrm{313}}^1$

素因数の和:346

約数の個数: 120

約数和(自身を含む): 61798968

約数和(自身を除く): 43018968

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 75, 80, 96, 100, 120, 125, 150, 160, 200, 240, 250, 300, 313, 375, 400, 480, 500, 600, 625, 626, 750, 800, 939, 1000, 1200, 1250, 1252, 1500, 1565, 1875, 1878, 2000, 2400, 2500, 2504, 3000, 3130, 3750, 3756, 4000, 4695, 5000, 5008, 6000, 6260, 7500, 7512, 7825, 9390, 10000, 10016, 12000, 12520, 15000, 15024, 15650, 18780, 20000, 23475, 25040, 30000, 30048, 31300, 37560, 39125, 46950, 50080, 60000, 62600, 75120, 78250, 93900, 117375, 125200, 150240, 156500, 187800, 195625, 234750, 250400, 313000, 375600, 391250, 469500, 586875, 626000, 751200, 782500, 939000, 1173750, 1252000, 1565000, 1878000, 2347500, 3130000, 3756000, 4695000, 6260000, 9390000, 18780000]

約数ペア:

[(1, 18780000), (2, 9390000), (3, 6260000), (4, 4695000), (5, 3756000), (6, 3130000), (8, 2347500), (10, 1878000), (12, 1565000), (15, 1252000), (16, 1173750), (20, 939000), (24, 782500), (25, 751200), (30, 626000), (32, 586875), (40, 469500), (48, 391250), (50, 375600), (60, 313000), (75, 250400), (80, 234750), (96, 195625), (100, 187800), (120, 156500), (125, 150240), (150, 125200), (160, 117375), (200, 93900), (240, 78250), (250, 75120), (300, 62600), (313, 60000), (375, 50080), (400, 46950), (480, 39125), (500, 37560), (600, 31300), (625, 30048), (626, 30000), (750, 25040), (800, 23475), (939, 20000), (1000, 18780), (1200, 15650), (1250, 15024), (1252, 15000), (1500, 12520), (1565, 12000), (1875, 10016), (1878, 10000), (2000, 9390), (2400, 7825), (2500, 7512), (2504, 7500), (3000, 6260), (3130, 6000), (3750, 5008), (3756, 5000), (4000, 4695)]