1279243400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{336643}}^1$

素因数の和:336678

約数の個数: 48

約数和(自身を含む): 3130789200

約数和(自身を除く): 1851545800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 336643, 673286, 1346572, 1683215, 2693144, 3366430, 6396217, 6732860, 8416075, 12792434, 13465720, 16832150, 25584868, 31981085, 33664300, 51169736, 63962170, 67328600, 127924340, 159905425, 255848680, 319810850, 639621700, 1279243400]

約数ペア:

[(1, 1279243400), (2, 639621700), (4, 319810850), (5, 255848680), (8, 159905425), (10, 127924340), (19, 67328600), (20, 63962170), (25, 51169736), (38, 33664300), (40, 31981085), (50, 25584868), (76, 16832150), (95, 13465720), (100, 12792434), (152, 8416075), (190, 6732860), (200, 6396217), (380, 3366430), (475, 2693144), (760, 1683215), (950, 1346572), (1900, 673286), (3800, 336643)]