400020000

素因数分解:

$2^5\times 3^1\times 5^4\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:205

約数の個数: 240

約数和(自身を含む): 1346194080

約数和(自身を除く): 946174080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 59, 60, 75, 80, 96, 100, 113, 118, 120, 125, 150, 160, 177, 200, 226, 236, 240, 250, 295, 300, 339, 354, 375, 400, 452, 472, 480, 500, 565, 590, 600, 625, 678, 708, 750, 800, 885, 904, 944, 1000, 1130, 1180, 1200, 1250, 1356, 1416, 1475, 1500, 1695, 1770, 1808, 1875, 1888, 2000, 2260, 2360, 2400, 2500, 2712, 2825, 2832, 2950, 3000, 3390, 3540, 3616, 3750, 4000, 4425, 4520, 4720, 5000, 5424, 5650, 5664, 5900, 6000, 6667, 6780, 7080, 7375, 7500, 8475, 8850, 9040, 9440, 10000, 10848, 11300, 11800, 12000, 13334, 13560, 14125, 14160, 14750, 15000, 16950, 17700, 18080, 20000, 20001, 22125, 22600, 23600, 26668, 27120, 28250, 28320, 29500, 30000, 33335, 33900, 35400, 36875, 40002, 42375, 44250, 45200, 47200, 53336, 54240, 56500, 59000, 60000, 66670, 67800, 70625, 70800, 73750, 80004, 84750, 88500, 90400, 100005, 106672, 110625, 113000, 118000, 133340, 135600, 141250, 141600, 147500, 160008, 166675, 169500, 177000, 200010, 211875, 213344, 221250, 226000, 236000, 266680, 271200, 282500, 295000, 320016, 333350, 339000, 354000, 400020, 423750, 442500, 452000, 500025, 533360, 565000, 590000, 640032, 666700, 678000, 708000, 800040, 833375, 847500, 885000, 1000050, 1066720, 1130000, 1180000, 1333400, 1356000, 1600080, 1666750, 1695000, 1770000, 2000100, 2260000, 2500125, 2666800, 3200160, 3333500, 3390000, 3540000, 4000200, 4166875, 5000250, 5333600, 6667000, 6780000, 8000400, 8333750, 10000500, 12500625, 13334000, 16000800, 16667500, 20001000, 25001250, 26668000, 33335000, 40002000, 50002500, 66670000, 80004000, 100005000, 133340000, 200010000, 400020000]

約数ペア:

[(1, 400020000), (2, 200010000), (3, 133340000), (4, 100005000), (5, 80004000), (6, 66670000), (8, 50002500), (10, 40002000), (12, 33335000), (15, 26668000), (16, 25001250), (20, 20001000), (24, 16667500), (25, 16000800), (30, 13334000), (32, 12500625), (40, 10000500), (48, 8333750), (50, 8000400), (59, 6780000), (60, 6667000), (75, 5333600), (80, 5000250), (96, 4166875), (100, 4000200), (113, 3540000), (118, 3390000), (120, 3333500), (125, 3200160), (150, 2666800), (160, 2500125), (177, 2260000), (200, 2000100), (226, 1770000), (236, 1695000), (240, 1666750), (250, 1600080), (295, 1356000), (300, 1333400), (339, 1180000), (354, 1130000), (375, 1066720), (400, 1000050), (452, 885000), (472, 847500), (480, 833375), (500, 800040), (565, 708000), (590, 678000), (600, 666700), (625, 640032), (678, 590000), (708, 565000), (750, 533360), (800, 500025), (885, 452000), (904, 442500), (944, 423750), (1000, 400020), (1130, 354000), (1180, 339000), (1200, 333350), (1250, 320016), (1356, 295000), (1416, 282500), (1475, 271200), (1500, 266680), (1695, 236000), (1770, 226000), (1808, 221250), (1875, 213344), (1888, 211875), (2000, 200010), (2260, 177000), (2360, 169500), (2400, 166675), (2500, 160008), (2712, 147500), (2825, 141600), (2832, 141250), (2950, 135600), (3000, 133340), (3390, 118000), (3540, 113000), (3616, 110625), (3750, 106672), (4000, 100005), (4425, 90400), (4520, 88500), (4720, 84750), (5000, 80004), (5424, 73750), (5650, 70800), (5664, 70625), (5900, 67800), (6000, 66670), (6667, 60000), (6780, 59000), (7080, 56500), (7375, 54240), (7500, 53336), (8475, 47200), (8850, 45200), (9040, 44250), (9440, 42375), (10000, 40002), (10848, 36875), (11300, 35400), (11800, 33900), (12000, 33335), (13334, 30000), (13560, 29500), (14125, 28320), (14160, 28250), (14750, 27120), (15000, 26668), (16950, 23600), (17700, 22600), (18080, 22125), (20000, 20001)]