28728045

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{47}}^2$

素因数の和:139

約数の個数: 54

約数和(自身を含む): 54046122

約数和(自身を除く): 25318077

約数列:

[1, 3, 5, 9, 15, 17, 45, 47, 51, 85, 141, 153, 235, 255, 289, 423, 705, 765, 799, 867, 1445, 2115, 2209, 2397, 2601, 3995, 4335, 6627, 7191, 11045, 11985, 13005, 13583, 19881, 33135, 35955, 37553, 40749, 67915, 99405, 112659, 122247, 187765, 203745, 337977, 563295, 611235, 638401, 1689885, 1915203, 3192005, 5745609, 9576015, 28728045]

約数ペア:

[(1, 28728045), (3, 9576015), (5, 5745609), (9, 3192005), (15, 1915203), (17, 1689885), (45, 638401), (47, 611235), (51, 563295), (85, 337977), (141, 203745), (153, 187765), (235, 122247), (255, 112659), (289, 99405), (423, 67915), (705, 40749), (765, 37553), (799, 35955), (867, 33135), (1445, 19881), (2115, 13583), (2209, 13005), (2397, 11985), (2601, 11045), (3995, 7191), (4335, 6627)]