20565160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{607}}^1$

素因数の和:647

約数の個数: 96

約数和(自身を含む): 58222080

約数和(自身を除く): 37656920

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 121, 140, 154, 220, 242, 280, 308, 385, 440, 484, 605, 607, 616, 770, 847, 968, 1210, 1214, 1540, 1694, 2420, 2428, 3035, 3080, 3388, 4235, 4249, 4840, 4856, 6070, 6677, 6776, 8470, 8498, 12140, 13354, 16940, 16996, 21245, 24280, 26708, 33385, 33880, 33992, 42490, 46739, 53416, 66770, 73447, 84980, 93478, 133540, 146894, 169960, 186956, 233695, 267080, 293788, 367235, 373912, 467390, 514129, 587576, 734470, 934780, 1028258, 1468940, 1869560, 2056516, 2570645, 2937880, 4113032, 5141290, 10282580, 20565160]

約数ペア:

[(1, 20565160), (2, 10282580), (4, 5141290), (5, 4113032), (7, 2937880), (8, 2570645), (10, 2056516), (11, 1869560), (14, 1468940), (20, 1028258), (22, 934780), (28, 734470), (35, 587576), (40, 514129), (44, 467390), (55, 373912), (56, 367235), (70, 293788), (77, 267080), (88, 233695), (110, 186956), (121, 169960), (140, 146894), (154, 133540), (220, 93478), (242, 84980), (280, 73447), (308, 66770), (385, 53416), (440, 46739), (484, 42490), (605, 33992), (607, 33880), (616, 33385), (770, 26708), (847, 24280), (968, 21245), (1210, 16996), (1214, 16940), (1540, 13354), (1694, 12140), (2420, 8498), (2428, 8470), (3035, 6776), (3080, 6677), (3388, 6070), (4235, 4856), (4249, 4840)]