28025865

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:699

約数の個数: 64

約数和(自身を含む): 58245120

約数和(自身を除く): 30219255

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 47, 63, 105, 135, 141, 189, 235, 315, 329, 423, 631, 705, 945, 987, 1269, 1645, 1893, 2115, 2961, 3155, 4417, 4935, 5679, 6345, 8883, 9465, 13251, 14805, 17037, 22085, 28395, 29657, 39753, 44415, 66255, 85185, 88971, 119259, 148285, 198765, 207599, 266913, 444855, 596295, 622797, 800739, 1037995, 1334565, 1868391, 3113985, 4003695, 5605173, 9341955, 28025865]

約数ペア:

[(1, 28025865), (3, 9341955), (5, 5605173), (7, 4003695), (9, 3113985), (15, 1868391), (21, 1334565), (27, 1037995), (35, 800739), (45, 622797), (47, 596295), (63, 444855), (105, 266913), (135, 207599), (141, 198765), (189, 148285), (235, 119259), (315, 88971), (329, 85185), (423, 66255), (631, 44415), (705, 39753), (945, 29657), (987, 28395), (1269, 22085), (1645, 17037), (1893, 14805), (2115, 13251), (2961, 9465), (3155, 8883), (4417, 6345), (4935, 5679)]