20480376

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:205

約数の個数: 128

約数和(自身を含む): 63452160

約数和(自身を除く): 42971784

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 71, 84, 101, 102, 119, 136, 142, 168, 202, 204, 213, 238, 284, 303, 357, 404, 408, 426, 476, 497, 568, 606, 707, 714, 808, 852, 952, 994, 1207, 1212, 1414, 1428, 1491, 1704, 1717, 1988, 2121, 2414, 2424, 2828, 2856, 2982, 3434, 3621, 3976, 4242, 4828, 5151, 5656, 5964, 6868, 7171, 7242, 8449, 8484, 9656, 10302, 11928, 12019, 13736, 14342, 14484, 16898, 16968, 20604, 21513, 24038, 25347, 28684, 28968, 33796, 36057, 41208, 43026, 48076, 50197, 50694, 57368, 67592, 72114, 86052, 96152, 100394, 101388, 121907, 144228, 150591, 172104, 200788, 202776, 243814, 288456, 301182, 365721, 401576, 487628, 602364, 731442, 853349, 975256, 1204728, 1462884, 1706698, 2560047, 2925768, 3413396, 5120094, 6826792, 10240188, 20480376]

約数ペア:

[(1, 20480376), (2, 10240188), (3, 6826792), (4, 5120094), (6, 3413396), (7, 2925768), (8, 2560047), (12, 1706698), (14, 1462884), (17, 1204728), (21, 975256), (24, 853349), (28, 731442), (34, 602364), (42, 487628), (51, 401576), (56, 365721), (68, 301182), (71, 288456), (84, 243814), (101, 202776), (102, 200788), (119, 172104), (136, 150591), (142, 144228), (168, 121907), (202, 101388), (204, 100394), (213, 96152), (238, 86052), (284, 72114), (303, 67592), (357, 57368), (404, 50694), (408, 50197), (426, 48076), (476, 43026), (497, 41208), (568, 36057), (606, 33796), (707, 28968), (714, 28684), (808, 25347), (852, 24038), (952, 21513), (994, 20604), (1207, 16968), (1212, 16898), (1414, 14484), (1428, 14342), (1491, 13736), (1704, 12019), (1717, 11928), (1988, 10302), (2121, 9656), (2414, 8484), (2424, 8449), (2828, 7242), (2856, 7171), (2982, 6868), (3434, 5964), (3621, 5656), (3976, 5151), (4242, 4828)]