66820000

素因数分解:

$2^5\times 5^4\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:300

約数の個数: 120

約数和(自身を含む): 177721236

約数和(自身を除く): 110901236

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 125, 130, 160, 200, 208, 250, 257, 260, 325, 400, 416, 500, 514, 520, 625, 650, 800, 1000, 1028, 1040, 1250, 1285, 1300, 1625, 2000, 2056, 2080, 2500, 2570, 2600, 3250, 3341, 4000, 4112, 5000, 5140, 5200, 6425, 6500, 6682, 8125, 8224, 10000, 10280, 10400, 12850, 13000, 13364, 16250, 16705, 20000, 20560, 25700, 26000, 26728, 32125, 32500, 33410, 41120, 51400, 52000, 53456, 64250, 65000, 66820, 83525, 102800, 106912, 128500, 130000, 133640, 160625, 167050, 205600, 257000, 260000, 267280, 321250, 334100, 417625, 514000, 534560, 642500, 668200, 835250, 1028000, 1285000, 1336400, 1670500, 2088125, 2570000, 2672800, 3341000, 4176250, 5140000, 6682000, 8352500, 13364000, 16705000, 33410000, 66820000]

約数ペア:

[(1, 66820000), (2, 33410000), (4, 16705000), (5, 13364000), (8, 8352500), (10, 6682000), (13, 5140000), (16, 4176250), (20, 3341000), (25, 2672800), (26, 2570000), (32, 2088125), (40, 1670500), (50, 1336400), (52, 1285000), (65, 1028000), (80, 835250), (100, 668200), (104, 642500), (125, 534560), (130, 514000), (160, 417625), (200, 334100), (208, 321250), (250, 267280), (257, 260000), (260, 257000), (325, 205600), (400, 167050), (416, 160625), (500, 133640), (514, 130000), (520, 128500), (625, 106912), (650, 102800), (800, 83525), (1000, 66820), (1028, 65000), (1040, 64250), (1250, 53456), (1285, 52000), (1300, 51400), (1625, 41120), (2000, 33410), (2056, 32500), (2080, 32125), (2500, 26728), (2570, 26000), (2600, 25700), (3250, 20560), (3341, 20000), (4000, 16705), (4112, 16250), (5000, 13364), (5140, 13000), (5200, 12850), (6425, 10400), (6500, 10280), (6682, 10000), (8125, 8224)]