78780000

素因数分解:

$2^5\times 3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:147

約数の個数: 240

約数和(自身を含む): 281047536

約数和(自身を除く): 202267536

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 32, 39, 40, 48, 50, 52, 60, 65, 75, 78, 80, 96, 100, 101, 104, 120, 125, 130, 150, 156, 160, 195, 200, 202, 208, 240, 250, 260, 300, 303, 312, 325, 375, 390, 400, 404, 416, 480, 500, 505, 520, 600, 606, 624, 625, 650, 750, 780, 800, 808, 975, 1000, 1010, 1040, 1200, 1212, 1248, 1250, 1300, 1313, 1500, 1515, 1560, 1616, 1625, 1875, 1950, 2000, 2020, 2080, 2400, 2424, 2500, 2525, 2600, 2626, 3000, 3030, 3120, 3232, 3250, 3750, 3900, 3939, 4000, 4040, 4848, 4875, 5000, 5050, 5200, 5252, 6000, 6060, 6240, 6500, 6565, 7500, 7575, 7800, 7878, 8080, 8125, 9696, 9750, 10000, 10100, 10400, 10504, 12000, 12120, 12625, 13000, 13130, 15000, 15150, 15600, 15756, 16160, 16250, 19500, 19695, 20000, 20200, 21008, 24240, 24375, 25250, 26000, 26260, 30000, 30300, 31200, 31512, 32500, 32825, 37875, 39000, 39390, 40400, 42016, 48480, 48750, 50500, 52000, 52520, 60000, 60600, 63024, 63125, 65000, 65650, 75750, 78000, 78780, 80800, 97500, 98475, 101000, 105040, 121200, 126048, 126250, 130000, 131300, 151500, 156000, 157560, 164125, 189375, 195000, 196950, 202000, 210080, 242400, 252500, 260000, 262600, 303000, 315120, 328250, 378750, 390000, 393900, 404000, 492375, 505000, 525200, 606000, 630240, 656500, 757500, 780000, 787800, 820625, 984750, 1010000, 1050400, 1212000, 1313000, 1515000, 1575600, 1641250, 1969500, 2020000, 2461875, 2626000, 3030000, 3151200, 3282500, 3939000, 4923750, 5252000, 6060000, 6565000, 7878000, 9847500, 13130000, 15756000, 19695000, 26260000, 39390000, 78780000]

約数ペア:

[(1, 78780000), (2, 39390000), (3, 26260000), (4, 19695000), (5, 15756000), (6, 13130000), (8, 9847500), (10, 7878000), (12, 6565000), (13, 6060000), (15, 5252000), (16, 4923750), (20, 3939000), (24, 3282500), (25, 3151200), (26, 3030000), (30, 2626000), (32, 2461875), (39, 2020000), (40, 1969500), (48, 1641250), (50, 1575600), (52, 1515000), (60, 1313000), (65, 1212000), (75, 1050400), (78, 1010000), (80, 984750), (96, 820625), (100, 787800), (101, 780000), (104, 757500), (120, 656500), (125, 630240), (130, 606000), (150, 525200), (156, 505000), (160, 492375), (195, 404000), (200, 393900), (202, 390000), (208, 378750), (240, 328250), (250, 315120), (260, 303000), (300, 262600), (303, 260000), (312, 252500), (325, 242400), (375, 210080), (390, 202000), (400, 196950), (404, 195000), (416, 189375), (480, 164125), (500, 157560), (505, 156000), (520, 151500), (600, 131300), (606, 130000), (624, 126250), (625, 126048), (650, 121200), (750, 105040), (780, 101000), (800, 98475), (808, 97500), (975, 80800), (1000, 78780), (1010, 78000), (1040, 75750), (1200, 65650), (1212, 65000), (1248, 63125), (1250, 63024), (1300, 60600), (1313, 60000), (1500, 52520), (1515, 52000), (1560, 50500), (1616, 48750), (1625, 48480), (1875, 42016), (1950, 40400), (2000, 39390), (2020, 39000), (2080, 37875), (2400, 32825), (2424, 32500), (2500, 31512), (2525, 31200), (2600, 30300), (2626, 30000), (3000, 26260), (3030, 26000), (3120, 25250), (3232, 24375), (3250, 24240), (3750, 21008), (3900, 20200), (3939, 20000), (4000, 19695), (4040, 19500), (4848, 16250), (4875, 16160), (5000, 15756), (5050, 15600), (5200, 15150), (5252, 15000), (6000, 13130), (6060, 13000), (6240, 12625), (6500, 12120), (6565, 12000), (7500, 10504), (7575, 10400), (7800, 10100), (7878, 10000), (8080, 9750), (8125, 9696)]