20963705080

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{337}}^1\times {\mathrm{457}}^1$

素因数の和:929

約数の個数: 128

約数和(自身を含む): 49153366080

約数和(自身を除く): 28189661000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 83, 164, 166, 205, 328, 332, 337, 410, 415, 457, 664, 674, 820, 830, 914, 1348, 1640, 1660, 1685, 1828, 2285, 2696, 3320, 3370, 3403, 3656, 4570, 6740, 6806, 9140, 13480, 13612, 13817, 17015, 18280, 18737, 27224, 27634, 27971, 34030, 37474, 37931, 55268, 55942, 68060, 69085, 74948, 75862, 93685, 110536, 111884, 136120, 138170, 139855, 149896, 151724, 154009, 187370, 189655, 223768, 276340, 279710, 303448, 308018, 374740, 379310, 552680, 559420, 616036, 749480, 758620, 770045, 1118840, 1146811, 1232072, 1517240, 1540090, 1555171, 2293622, 3080180, 3110342, 4587244, 5734055, 6160360, 6220684, 6314369, 7775855, 9174488, 11468110, 12441368, 12628738, 12782747, 15551710, 22936220, 25257476, 25565494, 31103420, 31571845, 45872440, 50514952, 51130988, 62206840, 63143690, 63913735, 102261976, 126287380, 127827470, 252574760, 255654940, 511309880, 524092627, 1048185254, 2096370508, 2620463135, 4192741016, 5240926270, 10481852540, 20963705080]

約数ペア:

[(1, 20963705080), (2, 10481852540), (4, 5240926270), (5, 4192741016), (8, 2620463135), (10, 2096370508), (20, 1048185254), (40, 524092627), (41, 511309880), (82, 255654940), (83, 252574760), (164, 127827470), (166, 126287380), (205, 102261976), (328, 63913735), (332, 63143690), (337, 62206840), (410, 51130988), (415, 50514952), (457, 45872440), (664, 31571845), (674, 31103420), (820, 25565494), (830, 25257476), (914, 22936220), (1348, 15551710), (1640, 12782747), (1660, 12628738), (1685, 12441368), (1828, 11468110), (2285, 9174488), (2696, 7775855), (3320, 6314369), (3370, 6220684), (3403, 6160360), (3656, 5734055), (4570, 4587244), (6740, 3110342), (6806, 3080180), (9140, 2293622), (13480, 1555171), (13612, 1540090), (13817, 1517240), (17015, 1232072), (18280, 1146811), (18737, 1118840), (27224, 770045), (27634, 758620), (27971, 749480), (34030, 616036), (37474, 559420), (37931, 552680), (55268, 379310), (55942, 374740), (68060, 308018), (69085, 303448), (74948, 279710), (75862, 276340), (93685, 223768), (110536, 189655), (111884, 187370), (136120, 154009), (138170, 151724), (139855, 149896)]