20731528090

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{87961}}^1$

素因数の和:88032

約数の個数: 96

約数和(自身を含む): 48012474384

約数和(自身を除く): 27280946294

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 37, 49, 65, 70, 74, 91, 98, 130, 182, 185, 245, 259, 370, 455, 481, 490, 518, 637, 910, 962, 1274, 1295, 1813, 2405, 2590, 3185, 3367, 3626, 4810, 6370, 6734, 9065, 16835, 18130, 23569, 33670, 47138, 87961, 117845, 175922, 235690, 439805, 615727, 879610, 1143493, 1231454, 2286986, 3078635, 3254557, 4310089, 5717465, 6157270, 6509114, 8004451, 8620178, 11434930, 16008902, 16272785, 21550445, 22781899, 32545570, 40022255, 42309241, 43100890, 45563798, 56031157, 80044510, 84618482, 112062314, 113909495, 159473293, 211546205, 227818990, 280155785, 296164687, 318946586, 423092410, 560311570, 592329374, 797366465, 1480823435, 1594732930, 2073152809, 2961646870, 4146305618, 10365764045, 20731528090]

約数ペア:

[(1, 20731528090), (2, 10365764045), (5, 4146305618), (7, 2961646870), (10, 2073152809), (13, 1594732930), (14, 1480823435), (26, 797366465), (35, 592329374), (37, 560311570), (49, 423092410), (65, 318946586), (70, 296164687), (74, 280155785), (91, 227818990), (98, 211546205), (130, 159473293), (182, 113909495), (185, 112062314), (245, 84618482), (259, 80044510), (370, 56031157), (455, 45563798), (481, 43100890), (490, 42309241), (518, 40022255), (637, 32545570), (910, 22781899), (962, 21550445), (1274, 16272785), (1295, 16008902), (1813, 11434930), (2405, 8620178), (2590, 8004451), (3185, 6509114), (3367, 6157270), (3626, 5717465), (4810, 4310089), (6370, 3254557), (6734, 3078635), (9065, 2286986), (16835, 1231454), (18130, 1143493), (23569, 879610), (33670, 615727), (47138, 439805), (87961, 235690), (117845, 175922)]