20179897850

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{191551}}^1$

素因数の和:191620

約数の個数: 72

約数和(自身を含む): 44678354688

約数和(自身を除く): 24498456838

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 43, 49, 50, 70, 86, 98, 175, 215, 245, 301, 350, 430, 490, 602, 1075, 1225, 1505, 2107, 2150, 2450, 3010, 4214, 7525, 10535, 15050, 21070, 52675, 105350, 191551, 383102, 957755, 1340857, 1915510, 2681714, 4788775, 6704285, 8236693, 9385999, 9577550, 13408570, 16473386, 18771998, 33521425, 41183465, 46929995, 57656851, 67042850, 82366930, 93859990, 115313702, 205917325, 234649975, 288284255, 403597957, 411834650, 469299950, 576568510, 807195914, 1441421275, 2017989785, 2882842550, 4035979570, 10089948925, 20179897850]

約数ペア:

[(1, 20179897850), (2, 10089948925), (5, 4035979570), (7, 2882842550), (10, 2017989785), (14, 1441421275), (25, 807195914), (35, 576568510), (43, 469299950), (49, 411834650), (50, 403597957), (70, 288284255), (86, 234649975), (98, 205917325), (175, 115313702), (215, 93859990), (245, 82366930), (301, 67042850), (350, 57656851), (430, 46929995), (490, 41183465), (602, 33521425), (1075, 18771998), (1225, 16473386), (1505, 13408570), (2107, 9577550), (2150, 9385999), (2450, 8236693), (3010, 6704285), (4214, 4788775), (7525, 2681714), (10535, 1915510), (15050, 1340857), (21070, 957755), (52675, 383102), (105350, 191551)]