72027760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{128621}}^1$

素因数の和:128641

約数の個数: 40

約数和(自身を含む): 191389536

約数和(自身を除く): 119361776

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 128621, 257242, 514484, 643105, 900347, 1028968, 1286210, 1800694, 2057936, 2572420, 3601388, 4501735, 5144840, 7202776, 9003470, 10289680, 14405552, 18006940, 36013880, 72027760]

約数ペア:

[(1, 72027760), (2, 36013880), (4, 18006940), (5, 14405552), (7, 10289680), (8, 9003470), (10, 7202776), (14, 5144840), (16, 4501735), (20, 3601388), (28, 2572420), (35, 2057936), (40, 1800694), (56, 1286210), (70, 1028968), (80, 900347), (112, 643105), (140, 514484), (280, 257242), (560, 128621)]