20269305

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:351

約数の個数: 64

約数和(自身を含む): 41817600

約数和(自身を除く): 21548295

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 89, 105, 135, 189, 241, 267, 315, 445, 623, 723, 801, 945, 1205, 1335, 1687, 1869, 2169, 2403, 3115, 3615, 4005, 5061, 5607, 6507, 8435, 9345, 10845, 12015, 15183, 16821, 21449, 25305, 28035, 32535, 45549, 64347, 75915, 84105, 107245, 150143, 193041, 227745, 321735, 450429, 579123, 750715, 965205, 1351287, 2252145, 2895615, 4053861, 6756435, 20269305]

約数ペア:

[(1, 20269305), (3, 6756435), (5, 4053861), (7, 2895615), (9, 2252145), (15, 1351287), (21, 965205), (27, 750715), (35, 579123), (45, 450429), (63, 321735), (89, 227745), (105, 193041), (135, 150143), (189, 107245), (241, 84105), (267, 75915), (315, 64347), (445, 45549), (623, 32535), (723, 28035), (801, 25305), (945, 21449), (1205, 16821), (1335, 15183), (1687, 12015), (1869, 10845), (2169, 9345), (2403, 8435), (3115, 6507), (3615, 5607), (4005, 5061)]