254380140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{201889}}^1$

素因数の和:201911

約数の個数: 72

約数和(自身を含む): 881855520

約数和(自身を除く): 627475380

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, 201889, 403778, 605667, 807556, 1009445, 1211334, 1413223, 1817001, 2018890, 2422668, 2826446, 3028335, 3634002, 4037780, 4239669, 5652892, 6056670, 7066115, 7268004, 8479338, 9085005, 12113340, 12719007, 14132230, 16958676, 18170010, 21198345, 25438014, 28264460, 36340020, 42396690, 50876028, 63595035, 84793380, 127190070, 254380140]

約数ペア:

[(1, 254380140), (2, 127190070), (3, 84793380), (4, 63595035), (5, 50876028), (6, 42396690), (7, 36340020), (9, 28264460), (10, 25438014), (12, 21198345), (14, 18170010), (15, 16958676), (18, 14132230), (20, 12719007), (21, 12113340), (28, 9085005), (30, 8479338), (35, 7268004), (36, 7066115), (42, 6056670), (45, 5652892), (60, 4239669), (63, 4037780), (70, 3634002), (84, 3028335), (90, 2826446), (105, 2422668), (126, 2018890), (140, 1817001), (180, 1413223), (210, 1211334), (252, 1009445), (315, 807556), (420, 605667), (630, 403778), (1260, 201889)]