15806420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{127}}^2$

素因数の和:277

約数の個数: 54

約数和(自身を含む): 38919258

約数和(自身を除く): 23112838

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 127, 140, 196, 245, 254, 490, 508, 635, 889, 980, 1270, 1778, 2540, 3556, 4445, 6223, 8890, 12446, 16129, 17780, 24892, 31115, 32258, 62230, 64516, 80645, 112903, 124460, 161290, 225806, 322580, 451612, 564515, 790321, 1129030, 1580642, 2258060, 3161284, 3951605, 7903210, 15806420]

約数ペア:

[(1, 15806420), (2, 7903210), (4, 3951605), (5, 3161284), (7, 2258060), (10, 1580642), (14, 1129030), (20, 790321), (28, 564515), (35, 451612), (49, 322580), (70, 225806), (98, 161290), (127, 124460), (140, 112903), (196, 80645), (245, 64516), (254, 62230), (490, 32258), (508, 31115), (635, 24892), (889, 17780), (980, 16129), (1270, 12446), (1778, 8890), (2540, 6223), (3556, 4445)]