20475315

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{461}}^1$

素因数の和:529

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 22102605

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 47, 63, 105, 135, 141, 189, 235, 315, 329, 423, 461, 705, 945, 987, 1269, 1383, 1645, 2115, 2305, 2961, 3227, 4149, 4935, 6345, 6915, 8883, 9681, 12447, 14805, 16135, 20745, 21667, 29043, 44415, 48405, 62235, 65001, 87129, 108335, 145215, 151669, 195003, 325005, 435645, 455007, 585009, 758345, 975015, 1365021, 2275035, 2925045, 4095063, 6825105, 20475315]

約数ペア:

[(1, 20475315), (3, 6825105), (5, 4095063), (7, 2925045), (9, 2275035), (15, 1365021), (21, 975015), (27, 758345), (35, 585009), (45, 455007), (47, 435645), (63, 325005), (105, 195003), (135, 151669), (141, 145215), (189, 108335), (235, 87129), (315, 65001), (329, 62235), (423, 48405), (461, 44415), (705, 29043), (945, 21667), (987, 20745), (1269, 16135), (1383, 14805), (1645, 12447), (2115, 9681), (2305, 8883), (2961, 6915), (3227, 6345), (4149, 4935)]