668200000

素因数分解:

$2^6\times 5^5\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:307

約数の個数: 168

約数和(自身を含む): 1791775944

約数和(自身を除く): 1123575944

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 130, 160, 200, 208, 250, 257, 260, 320, 325, 400, 416, 500, 514, 520, 625, 650, 800, 832, 1000, 1028, 1040, 1250, 1285, 1300, 1600, 1625, 2000, 2056, 2080, 2500, 2570, 2600, 3125, 3250, 3341, 4000, 4112, 4160, 5000, 5140, 5200, 6250, 6425, 6500, 6682, 8000, 8125, 8224, 10000, 10280, 10400, 12500, 12850, 13000, 13364, 16250, 16448, 16705, 20000, 20560, 20800, 25000, 25700, 26000, 26728, 32125, 32500, 33410, 40000, 40625, 41120, 50000, 51400, 52000, 53456, 64250, 65000, 66820, 81250, 82240, 83525, 100000, 102800, 104000, 106912, 128500, 130000, 133640, 160625, 162500, 167050, 200000, 205600, 213824, 257000, 260000, 267280, 321250, 325000, 334100, 411200, 417625, 514000, 520000, 534560, 642500, 650000, 668200, 803125, 835250, 1028000, 1069120, 1285000, 1300000, 1336400, 1606250, 1670500, 2056000, 2088125, 2570000, 2600000, 2672800, 3212500, 3341000, 4176250, 5140000, 5345600, 6425000, 6682000, 8352500, 10280000, 10440625, 12850000, 13364000, 16705000, 20881250, 25700000, 26728000, 33410000, 41762500, 51400000, 66820000, 83525000, 133640000, 167050000, 334100000, 668200000]

約数ペア:

[(1, 668200000), (2, 334100000), (4, 167050000), (5, 133640000), (8, 83525000), (10, 66820000), (13, 51400000), (16, 41762500), (20, 33410000), (25, 26728000), (26, 25700000), (32, 20881250), (40, 16705000), (50, 13364000), (52, 12850000), (64, 10440625), (65, 10280000), (80, 8352500), (100, 6682000), (104, 6425000), (125, 5345600), (130, 5140000), (160, 4176250), (200, 3341000), (208, 3212500), (250, 2672800), (257, 2600000), (260, 2570000), (320, 2088125), (325, 2056000), (400, 1670500), (416, 1606250), (500, 1336400), (514, 1300000), (520, 1285000), (625, 1069120), (650, 1028000), (800, 835250), (832, 803125), (1000, 668200), (1028, 650000), (1040, 642500), (1250, 534560), (1285, 520000), (1300, 514000), (1600, 417625), (1625, 411200), (2000, 334100), (2056, 325000), (2080, 321250), (2500, 267280), (2570, 260000), (2600, 257000), (3125, 213824), (3250, 205600), (3341, 200000), (4000, 167050), (4112, 162500), (4160, 160625), (5000, 133640), (5140, 130000), (5200, 128500), (6250, 106912), (6425, 104000), (6500, 102800), (6682, 100000), (8000, 83525), (8125, 82240), (8224, 81250), (10000, 66820), (10280, 65000), (10400, 64250), (12500, 53456), (12850, 52000), (13000, 51400), (13364, 50000), (16250, 41120), (16448, 40625), (16705, 40000), (20000, 33410), (20560, 32500), (20800, 32125), (25000, 26728), (25700, 26000)]