20002815

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{347}}^1$

素因数の和:429

約数の個数: 64

約数和(自身を含む): 41425920

約数和(自身を除く): 21423105

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 61, 63, 105, 135, 183, 189, 305, 315, 347, 427, 549, 915, 945, 1041, 1281, 1647, 1735, 2135, 2429, 2745, 3123, 3843, 5205, 6405, 7287, 8235, 9369, 11529, 12145, 15615, 19215, 21167, 21861, 36435, 46845, 57645, 63501, 65583, 105835, 109305, 148169, 190503, 317505, 327915, 444507, 571509, 740845, 952515, 1333521, 2222535, 2857545, 4000563, 6667605, 20002815]

約数ペア:

[(1, 20002815), (3, 6667605), (5, 4000563), (7, 2857545), (9, 2222535), (15, 1333521), (21, 952515), (27, 740845), (35, 571509), (45, 444507), (61, 327915), (63, 317505), (105, 190503), (135, 148169), (183, 109305), (189, 105835), (305, 65583), (315, 63501), (347, 57645), (427, 46845), (549, 36435), (915, 21861), (945, 21167), (1041, 19215), (1281, 15615), (1647, 12145), (1735, 11529), (2135, 9369), (2429, 8235), (2745, 7287), (3123, 6405), (3843, 5205)]