1427166620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{72889}}^1$

素因数の和:72998

約数の個数: 48

約数和(自身を含む): 3306290400

約数和(自身を除く): 1879123780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4895, 9790, 19580, 72889, 145778, 291556, 364445, 728890, 801779, 1457780, 1603558, 3207116, 4008895, 6487121, 8017790, 12974242, 16035580, 25948484, 32435605, 64871210, 71358331, 129742420, 142716662, 285433324, 356791655, 713583310, 1427166620]

約数ペア:

[(1, 1427166620), (2, 713583310), (4, 356791655), (5, 285433324), (10, 142716662), (11, 129742420), (20, 71358331), (22, 64871210), (44, 32435605), (55, 25948484), (89, 16035580), (110, 12974242), (178, 8017790), (220, 6487121), (356, 4008895), (445, 3207116), (890, 1603558), (979, 1457780), (1780, 801779), (1958, 728890), (3916, 364445), (4895, 291556), (9790, 145778), (19580, 72889)]