64220000

素因数分解:

$2^5\times 5^4\times {\mathrm{13}}^2\times {\mathrm{19}}^1$

素因数の和:75

約数の個数: 180

約数和(自身を含む): 180082980

約数和(自身を除く): 115862980

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 32, 38, 40, 50, 52, 65, 76, 80, 95, 100, 104, 125, 130, 152, 160, 169, 190, 200, 208, 247, 250, 260, 304, 325, 338, 380, 400, 416, 475, 494, 500, 520, 608, 625, 650, 676, 760, 800, 845, 950, 988, 1000, 1040, 1235, 1250, 1300, 1352, 1520, 1625, 1690, 1900, 1976, 2000, 2080, 2375, 2470, 2500, 2600, 2704, 3040, 3211, 3250, 3380, 3800, 3952, 4000, 4225, 4750, 4940, 5000, 5200, 5408, 6175, 6422, 6500, 6760, 7600, 7904, 8125, 8450, 9500, 9880, 10000, 10400, 11875, 12350, 12844, 13000, 13520, 15200, 16055, 16250, 16900, 19000, 19760, 20000, 21125, 23750, 24700, 25688, 26000, 27040, 30875, 32110, 32500, 33800, 38000, 39520, 42250, 47500, 49400, 51376, 52000, 61750, 64220, 65000, 67600, 76000, 80275, 84500, 95000, 98800, 102752, 105625, 123500, 128440, 130000, 135200, 154375, 160550, 169000, 190000, 197600, 211250, 247000, 256880, 260000, 308750, 321100, 338000, 380000, 401375, 422500, 494000, 513760, 617500, 642200, 676000, 802750, 845000, 988000, 1235000, 1284400, 1605500, 1690000, 2006875, 2470000, 2568800, 3211000, 3380000, 4013750, 4940000, 6422000, 8027500, 12844000, 16055000, 32110000, 64220000]

約数ペア:

[(1, 64220000), (2, 32110000), (4, 16055000), (5, 12844000), (8, 8027500), (10, 6422000), (13, 4940000), (16, 4013750), (19, 3380000), (20, 3211000), (25, 2568800), (26, 2470000), (32, 2006875), (38, 1690000), (40, 1605500), (50, 1284400), (52, 1235000), (65, 988000), (76, 845000), (80, 802750), (95, 676000), (100, 642200), (104, 617500), (125, 513760), (130, 494000), (152, 422500), (160, 401375), (169, 380000), (190, 338000), (200, 321100), (208, 308750), (247, 260000), (250, 256880), (260, 247000), (304, 211250), (325, 197600), (338, 190000), (380, 169000), (400, 160550), (416, 154375), (475, 135200), (494, 130000), (500, 128440), (520, 123500), (608, 105625), (625, 102752), (650, 98800), (676, 95000), (760, 84500), (800, 80275), (845, 76000), (950, 67600), (988, 65000), (1000, 64220), (1040, 61750), (1235, 52000), (1250, 51376), (1300, 49400), (1352, 47500), (1520, 42250), (1625, 39520), (1690, 38000), (1900, 33800), (1976, 32500), (2000, 32110), (2080, 30875), (2375, 27040), (2470, 26000), (2500, 25688), (2600, 24700), (2704, 23750), (3040, 21125), (3211, 20000), (3250, 19760), (3380, 19000), (3800, 16900), (3952, 16250), (4000, 16055), (4225, 15200), (4750, 13520), (4940, 13000), (5000, 12844), (5200, 12350), (5408, 11875), (6175, 10400), (6422, 10000), (6500, 9880), (6760, 9500), (7600, 8450), (7904, 8125)]