18450000

素因数分解:

$2^4\times 3^2\times 5^5\times {\mathrm{41}}^1$

素因数の和:80

約数の個数: 180

約数和(自身を含む): 66112956

約数和(自身を除く): 47662956

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 41, 45, 48, 50, 60, 72, 75, 80, 82, 90, 100, 120, 123, 125, 144, 150, 164, 180, 200, 205, 225, 240, 246, 250, 300, 328, 360, 369, 375, 400, 410, 450, 492, 500, 600, 615, 625, 656, 720, 738, 750, 820, 900, 984, 1000, 1025, 1125, 1200, 1230, 1250, 1476, 1500, 1640, 1800, 1845, 1875, 1968, 2000, 2050, 2250, 2460, 2500, 2952, 3000, 3075, 3125, 3280, 3600, 3690, 3750, 4100, 4500, 4920, 5000, 5125, 5625, 5904, 6000, 6150, 6250, 7380, 7500, 8200, 9000, 9225, 9375, 9840, 10000, 10250, 11250, 12300, 12500, 14760, 15000, 15375, 16400, 18000, 18450, 18750, 20500, 22500, 24600, 25000, 25625, 28125, 29520, 30000, 30750, 36900, 37500, 41000, 45000, 46125, 49200, 50000, 51250, 56250, 61500, 73800, 75000, 76875, 82000, 90000, 92250, 102500, 112500, 123000, 128125, 147600, 150000, 153750, 184500, 205000, 225000, 230625, 246000, 256250, 307500, 369000, 384375, 410000, 450000, 461250, 512500, 615000, 738000, 768750, 922500, 1025000, 1153125, 1230000, 1537500, 1845000, 2050000, 2306250, 3075000, 3690000, 4612500, 6150000, 9225000, 18450000]

約数ペア:

[(1, 18450000), (2, 9225000), (3, 6150000), (4, 4612500), (5, 3690000), (6, 3075000), (8, 2306250), (9, 2050000), (10, 1845000), (12, 1537500), (15, 1230000), (16, 1153125), (18, 1025000), (20, 922500), (24, 768750), (25, 738000), (30, 615000), (36, 512500), (40, 461250), (41, 450000), (45, 410000), (48, 384375), (50, 369000), (60, 307500), (72, 256250), (75, 246000), (80, 230625), (82, 225000), (90, 205000), (100, 184500), (120, 153750), (123, 150000), (125, 147600), (144, 128125), (150, 123000), (164, 112500), (180, 102500), (200, 92250), (205, 90000), (225, 82000), (240, 76875), (246, 75000), (250, 73800), (300, 61500), (328, 56250), (360, 51250), (369, 50000), (375, 49200), (400, 46125), (410, 45000), (450, 41000), (492, 37500), (500, 36900), (600, 30750), (615, 30000), (625, 29520), (656, 28125), (720, 25625), (738, 25000), (750, 24600), (820, 22500), (900, 20500), (984, 18750), (1000, 18450), (1025, 18000), (1125, 16400), (1200, 15375), (1230, 15000), (1250, 14760), (1476, 12500), (1500, 12300), (1640, 11250), (1800, 10250), (1845, 10000), (1875, 9840), (1968, 9375), (2000, 9225), (2050, 9000), (2250, 8200), (2460, 7500), (2500, 7380), (2952, 6250), (3000, 6150), (3075, 6000), (3125, 5904), (3280, 5625), (3600, 5125), (3690, 5000), (3750, 4920), (4100, 4500)]