178928820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{142007}}^1$

素因数の和:142029

約数の個数: 72

約数和(自身を含む): 620290944

約数和(自身を除く): 441362124

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 142007, 284014, 426021, 568028, 710035, 852042, 994049, 1278063, 1420070, 1704084, 1988098, 2130105, 2556126, 2840140, 2982147, 3976196, 4260210, 4970245, 5112252, 5964294, 6390315, 8520420, 8946441, 9940490, 11928588, 12780630, 14910735, 17892882, 19880980, 25561260, 29821470, 35785764, 44732205, 59642940, 89464410, 178928820]

約数ペア:

[(1, 178928820), (2, 89464410), (3, 59642940), (4, 44732205), (5, 35785764), (6, 29821470), (7, 25561260), (9, 19880980), (10, 17892882), (12, 14910735), (14, 12780630), (15, 11928588), (18, 9940490), (20, 8946441), (21, 8520420), (28, 6390315), (30, 5964294), (35, 5112252), (36, 4970245), (42, 4260210), (45, 3976196), (60, 2982147), (63, 2840140), (70, 2556126), (84, 2130105), (90, 1988098), (105, 1704084), (126, 1420070), (140, 1278063), (180, 994049), (210, 852042), (252, 710035), (315, 568028), (420, 426021), (630, 284014), (1260, 142007)]