21300000

素因数分解:

$2^5\times 3^1\times 5^5\times {\mathrm{71}}^1$

素因数の和:109

約数の個数: 144

約数和(自身を含む): 70870464

約数和(自身を除く): 49570464

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 71, 75, 80, 96, 100, 120, 125, 142, 150, 160, 200, 213, 240, 250, 284, 300, 355, 375, 400, 426, 480, 500, 568, 600, 625, 710, 750, 800, 852, 1000, 1065, 1136, 1200, 1250, 1420, 1500, 1704, 1775, 1875, 2000, 2130, 2272, 2400, 2500, 2840, 3000, 3125, 3408, 3550, 3750, 4000, 4260, 5000, 5325, 5680, 6000, 6250, 6816, 7100, 7500, 8520, 8875, 9375, 10000, 10650, 11360, 12000, 12500, 14200, 15000, 17040, 17750, 18750, 20000, 21300, 25000, 26625, 28400, 30000, 34080, 35500, 37500, 42600, 44375, 50000, 53250, 56800, 60000, 71000, 75000, 85200, 88750, 100000, 106500, 133125, 142000, 150000, 170400, 177500, 213000, 221875, 266250, 284000, 300000, 355000, 426000, 443750, 532500, 665625, 710000, 852000, 887500, 1065000, 1331250, 1420000, 1775000, 2130000, 2662500, 3550000, 4260000, 5325000, 7100000, 10650000, 21300000]

約数ペア:

[(1, 21300000), (2, 10650000), (3, 7100000), (4, 5325000), (5, 4260000), (6, 3550000), (8, 2662500), (10, 2130000), (12, 1775000), (15, 1420000), (16, 1331250), (20, 1065000), (24, 887500), (25, 852000), (30, 710000), (32, 665625), (40, 532500), (48, 443750), (50, 426000), (60, 355000), (71, 300000), (75, 284000), (80, 266250), (96, 221875), (100, 213000), (120, 177500), (125, 170400), (142, 150000), (150, 142000), (160, 133125), (200, 106500), (213, 100000), (240, 88750), (250, 85200), (284, 75000), (300, 71000), (355, 60000), (375, 56800), (400, 53250), (426, 50000), (480, 44375), (500, 42600), (568, 37500), (600, 35500), (625, 34080), (710, 30000), (750, 28400), (800, 26625), (852, 25000), (1000, 21300), (1065, 20000), (1136, 18750), (1200, 17750), (1250, 17040), (1420, 15000), (1500, 14200), (1704, 12500), (1775, 12000), (1875, 11360), (2000, 10650), (2130, 10000), (2272, 9375), (2400, 8875), (2500, 8520), (2840, 7500), (3000, 7100), (3125, 6816), (3408, 6250), (3550, 6000), (3750, 5680), (4000, 5325), (4260, 5000)]