521589320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{266117}}^1$

素因数の和:266142

約数の個数: 48

約数和(自身を含む): 1365185340

約数和(自身を除く): 843596020

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 266117, 532234, 1064468, 1330585, 1862819, 2128936, 2661170, 3725638, 5322340, 7451276, 9314095, 10644680, 13039733, 14902552, 18628190, 26079466, 37256380, 52158932, 65198665, 74512760, 104317864, 130397330, 260794660, 521589320]

約数ペア:

[(1, 521589320), (2, 260794660), (4, 130397330), (5, 104317864), (7, 74512760), (8, 65198665), (10, 52158932), (14, 37256380), (20, 26079466), (28, 18628190), (35, 14902552), (40, 13039733), (49, 10644680), (56, 9314095), (70, 7451276), (98, 5322340), (140, 3725638), (196, 2661170), (245, 2128936), (280, 1862819), (392, 1330585), (490, 1064468), (980, 532234), (1960, 266117)]