1620637480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{7411}}^1$

素因数の和:7511

約数の個数: 128

約数和(自身を含む): 4610856960

約数和(自身を除く): 2990219480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 71, 77, 88, 110, 140, 142, 154, 220, 280, 284, 308, 355, 385, 440, 497, 568, 616, 710, 770, 781, 994, 1420, 1540, 1562, 1988, 2485, 2840, 3080, 3124, 3905, 3976, 4970, 5467, 6248, 7411, 7810, 9940, 10934, 14822, 15620, 19880, 21868, 27335, 29644, 31240, 37055, 43736, 51877, 54670, 59288, 74110, 81521, 103754, 109340, 148220, 163042, 207508, 218680, 259385, 296440, 326084, 407605, 415016, 518770, 526181, 570647, 652168, 815210, 1037540, 1052362, 1141294, 1630420, 2075080, 2104724, 2282588, 2630905, 2853235, 3260840, 3683267, 4209448, 4565176, 5261810, 5706470, 5787991, 7366534, 10523620, 11412940, 11575982, 14733068, 18416335, 21047240, 22825880, 23151964, 28939955, 29466136, 36832670, 40515937, 46303928, 57879910, 73665340, 81031874, 115759820, 147330680, 162063748, 202579685, 231519640, 324127496, 405159370, 810318740, 1620637480]

約数ペア:

[(1, 1620637480), (2, 810318740), (4, 405159370), (5, 324127496), (7, 231519640), (8, 202579685), (10, 162063748), (11, 147330680), (14, 115759820), (20, 81031874), (22, 73665340), (28, 57879910), (35, 46303928), (40, 40515937), (44, 36832670), (55, 29466136), (56, 28939955), (70, 23151964), (71, 22825880), (77, 21047240), (88, 18416335), (110, 14733068), (140, 11575982), (142, 11412940), (154, 10523620), (220, 7366534), (280, 5787991), (284, 5706470), (308, 5261810), (355, 4565176), (385, 4209448), (440, 3683267), (497, 3260840), (568, 2853235), (616, 2630905), (710, 2282588), (770, 2104724), (781, 2075080), (994, 1630420), (1420, 1141294), (1540, 1052362), (1562, 1037540), (1988, 815210), (2485, 652168), (2840, 570647), (3080, 526181), (3124, 518770), (3905, 415016), (3976, 407605), (4970, 326084), (5467, 296440), (6248, 259385), (7411, 218680), (7810, 207508), (9940, 163042), (10934, 148220), (14822, 109340), (15620, 103754), (19880, 81521), (21868, 74110), (27335, 59288), (29644, 54670), (31240, 51877), (37055, 43736)]