505570000

素因数分解:

$2^4\times 5^4\times {\mathrm{13}}^1\times {\mathrm{3889}}^1$

素因数の和:3930

約数の個数: 100

約数和(自身を含む): 1318531060

約数和(自身を除く): 812961060

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 250, 260, 325, 400, 500, 520, 625, 650, 1000, 1040, 1250, 1300, 1625, 2000, 2500, 2600, 3250, 3889, 5000, 5200, 6500, 7778, 8125, 10000, 13000, 15556, 16250, 19445, 26000, 31112, 32500, 38890, 50557, 62224, 65000, 77780, 97225, 101114, 130000, 155560, 194450, 202228, 252785, 311120, 388900, 404456, 486125, 505570, 777800, 808912, 972250, 1011140, 1263925, 1555600, 1944500, 2022280, 2430625, 2527850, 3889000, 4044560, 4861250, 5055700, 6319625, 7778000, 9722500, 10111400, 12639250, 19445000, 20222800, 25278500, 31598125, 38890000, 50557000, 63196250, 101114000, 126392500, 252785000, 505570000]

約数ペア:

[(1, 505570000), (2, 252785000), (4, 126392500), (5, 101114000), (8, 63196250), (10, 50557000), (13, 38890000), (16, 31598125), (20, 25278500), (25, 20222800), (26, 19445000), (40, 12639250), (50, 10111400), (52, 9722500), (65, 7778000), (80, 6319625), (100, 5055700), (104, 4861250), (125, 4044560), (130, 3889000), (200, 2527850), (208, 2430625), (250, 2022280), (260, 1944500), (325, 1555600), (400, 1263925), (500, 1011140), (520, 972250), (625, 808912), (650, 777800), (1000, 505570), (1040, 486125), (1250, 404456), (1300, 388900), (1625, 311120), (2000, 252785), (2500, 202228), (2600, 194450), (3250, 155560), (3889, 130000), (5000, 101114), (5200, 97225), (6500, 77780), (7778, 65000), (8125, 62224), (10000, 50557), (13000, 38890), (15556, 32500), (16250, 31112), (19445, 26000)]