20175491440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{843457}}^1$

素因数の和:843506

約数の個数: 80

約数和(自身を含む): 52712751168

約数和(自身を除く): 32537259728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 184, 208, 230, 260, 299, 368, 460, 520, 598, 920, 1040, 1196, 1495, 1840, 2392, 2990, 4784, 5980, 11960, 23920, 843457, 1686914, 3373828, 4217285, 6747656, 8434570, 10964941, 13495312, 16869140, 19399511, 21929882, 33738280, 38799022, 43859764, 54824705, 67476560, 77598044, 87719528, 96997555, 109649410, 155196088, 175439056, 193995110, 219298820, 252193643, 310392176, 387990220, 438597640, 504387286, 775980440, 877195280, 1008774572, 1260968215, 1551960880, 2017549144, 2521936430, 4035098288, 5043872860, 10087745720, 20175491440]

約数ペア:

[(1, 20175491440), (2, 10087745720), (4, 5043872860), (5, 4035098288), (8, 2521936430), (10, 2017549144), (13, 1551960880), (16, 1260968215), (20, 1008774572), (23, 877195280), (26, 775980440), (40, 504387286), (46, 438597640), (52, 387990220), (65, 310392176), (80, 252193643), (92, 219298820), (104, 193995110), (115, 175439056), (130, 155196088), (184, 109649410), (208, 96997555), (230, 87719528), (260, 77598044), (299, 67476560), (368, 54824705), (460, 43859764), (520, 38799022), (598, 33738280), (920, 21929882), (1040, 19399511), (1196, 16869140), (1495, 13495312), (1840, 10964941), (2392, 8434570), (2990, 6747656), (4784, 4217285), (5980, 3373828), (11960, 1686914), (23920, 843457)]