81989880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97607}}^1$

素因数の和:97628

約数の個数: 64

約数和(自身を含む): 281111040

約数和(自身を除く): 199121160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 97607, 195214, 292821, 390428, 488035, 585642, 683249, 780856, 976070, 1171284, 1366498, 1464105, 1952140, 2049747, 2342568, 2732996, 2928210, 3416245, 3904280, 4099494, 5465992, 5856420, 6832490, 8198988, 10248735, 11712840, 13664980, 16397976, 20497470, 27329960, 40994940, 81989880]

約数ペア:

[(1, 81989880), (2, 40994940), (3, 27329960), (4, 20497470), (5, 16397976), (6, 13664980), (7, 11712840), (8, 10248735), (10, 8198988), (12, 6832490), (14, 5856420), (15, 5465992), (20, 4099494), (21, 3904280), (24, 3416245), (28, 2928210), (30, 2732996), (35, 2342568), (40, 2049747), (42, 1952140), (56, 1464105), (60, 1366498), (70, 1171284), (84, 976070), (105, 780856), (120, 683249), (140, 585642), (168, 488035), (210, 390428), (280, 292821), (420, 195214), (840, 97607)]