20512991600

素因数分解:

$2^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{2229673}}^1$

素因数の和:2229714

約数の個数: 60

約数和(自身を含む): 51425201136

約数和(自身を除く): 30912209536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 184, 200, 230, 368, 400, 460, 575, 920, 1150, 1840, 2300, 4600, 9200, 2229673, 4459346, 8918692, 11148365, 17837384, 22296730, 35674768, 44593460, 51282479, 55741825, 89186920, 102564958, 111483650, 178373840, 205129916, 222967300, 256412395, 410259832, 445934600, 512824790, 820519664, 891869200, 1025649580, 1282061975, 2051299160, 2564123950, 4102598320, 5128247900, 10256495800, 20512991600]

約数ペア:

[(1, 20512991600), (2, 10256495800), (4, 5128247900), (5, 4102598320), (8, 2564123950), (10, 2051299160), (16, 1282061975), (20, 1025649580), (23, 891869200), (25, 820519664), (40, 512824790), (46, 445934600), (50, 410259832), (80, 256412395), (92, 222967300), (100, 205129916), (115, 178373840), (184, 111483650), (200, 102564958), (230, 89186920), (368, 55741825), (400, 51282479), (460, 44593460), (575, 35674768), (920, 22296730), (1150, 17837384), (1840, 11148365), (2300, 8918692), (4600, 4459346), (9200, 2229673)]