21450000

素因数分解:

$2^4\times 3^1\times 5^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:60

約数の個数: 240

約数和(自身を含む): 81369792

約数和(自身を除く): 59919792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 16, 20, 22, 24, 25, 26, 30, 33, 39, 40, 44, 48, 50, 52, 55, 60, 65, 66, 75, 78, 80, 88, 100, 104, 110, 120, 125, 130, 132, 143, 150, 156, 165, 176, 195, 200, 208, 220, 240, 250, 260, 264, 275, 286, 300, 312, 325, 330, 375, 390, 400, 429, 440, 500, 520, 528, 550, 572, 600, 624, 625, 650, 660, 715, 750, 780, 825, 858, 880, 975, 1000, 1040, 1100, 1144, 1200, 1250, 1300, 1320, 1375, 1430, 1500, 1560, 1625, 1650, 1716, 1875, 1950, 2000, 2145, 2200, 2288, 2500, 2600, 2640, 2750, 2860, 3000, 3120, 3125, 3250, 3300, 3432, 3575, 3750, 3900, 4125, 4290, 4400, 4875, 5000, 5200, 5500, 5720, 6000, 6250, 6500, 6600, 6864, 6875, 7150, 7500, 7800, 8125, 8250, 8580, 9375, 9750, 10000, 10725, 11000, 11440, 12500, 13000, 13200, 13750, 14300, 15000, 15600, 16250, 16500, 17160, 17875, 18750, 19500, 20625, 21450, 22000, 24375, 25000, 26000, 27500, 28600, 30000, 32500, 33000, 34320, 34375, 35750, 37500, 39000, 40625, 41250, 42900, 48750, 50000, 53625, 55000, 57200, 65000, 66000, 68750, 71500, 75000, 78000, 81250, 82500, 85800, 89375, 97500, 103125, 107250, 110000, 121875, 130000, 137500, 143000, 150000, 162500, 165000, 171600, 178750, 195000, 206250, 214500, 243750, 268125, 275000, 286000, 325000, 330000, 357500, 390000, 412500, 429000, 446875, 487500, 536250, 550000, 650000, 715000, 825000, 858000, 893750, 975000, 1072500, 1340625, 1430000, 1650000, 1787500, 1950000, 2145000, 2681250, 3575000, 4290000, 5362500, 7150000, 10725000, 21450000]

約数ペア:

[(1, 21450000), (2, 10725000), (3, 7150000), (4, 5362500), (5, 4290000), (6, 3575000), (8, 2681250), (10, 2145000), (11, 1950000), (12, 1787500), (13, 1650000), (15, 1430000), (16, 1340625), (20, 1072500), (22, 975000), (24, 893750), (25, 858000), (26, 825000), (30, 715000), (33, 650000), (39, 550000), (40, 536250), (44, 487500), (48, 446875), (50, 429000), (52, 412500), (55, 390000), (60, 357500), (65, 330000), (66, 325000), (75, 286000), (78, 275000), (80, 268125), (88, 243750), (100, 214500), (104, 206250), (110, 195000), (120, 178750), (125, 171600), (130, 165000), (132, 162500), (143, 150000), (150, 143000), (156, 137500), (165, 130000), (176, 121875), (195, 110000), (200, 107250), (208, 103125), (220, 97500), (240, 89375), (250, 85800), (260, 82500), (264, 81250), (275, 78000), (286, 75000), (300, 71500), (312, 68750), (325, 66000), (330, 65000), (375, 57200), (390, 55000), (400, 53625), (429, 50000), (440, 48750), (500, 42900), (520, 41250), (528, 40625), (550, 39000), (572, 37500), (600, 35750), (624, 34375), (625, 34320), (650, 33000), (660, 32500), (715, 30000), (750, 28600), (780, 27500), (825, 26000), (858, 25000), (880, 24375), (975, 22000), (1000, 21450), (1040, 20625), (1100, 19500), (1144, 18750), (1200, 17875), (1250, 17160), (1300, 16500), (1320, 16250), (1375, 15600), (1430, 15000), (1500, 14300), (1560, 13750), (1625, 13200), (1650, 13000), (1716, 12500), (1875, 11440), (1950, 11000), (2000, 10725), (2145, 10000), (2200, 9750), (2288, 9375), (2500, 8580), (2600, 8250), (2640, 8125), (2750, 7800), (2860, 7500), (3000, 7150), (3120, 6875), (3125, 6864), (3250, 6600), (3300, 6500), (3432, 6250), (3575, 6000), (3750, 5720), (3900, 5500), (4125, 5200), (4290, 5000), (4400, 4875)]