20989536680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1743317}}^1$

素因数の和:1743378

約数の個数: 64

約数和(自身を含む): 55228314240

約数和(自身を除く): 34238777560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 3010, 6020, 12040, 1743317, 3486634, 6973268, 8716585, 12203219, 13946536, 17433170, 24406438, 34866340, 48812876, 61016095, 69732680, 74962631, 97625752, 122032190, 149925262, 244064380, 299850524, 374813155, 488128760, 524738417, 599701048, 749626310, 1049476834, 1499252620, 2098953668, 2623692085, 2998505240, 4197907336, 5247384170, 10494768340, 20989536680]

約数ペア:

[(1, 20989536680), (2, 10494768340), (4, 5247384170), (5, 4197907336), (7, 2998505240), (8, 2623692085), (10, 2098953668), (14, 1499252620), (20, 1049476834), (28, 749626310), (35, 599701048), (40, 524738417), (43, 488128760), (56, 374813155), (70, 299850524), (86, 244064380), (140, 149925262), (172, 122032190), (215, 97625752), (280, 74962631), (301, 69732680), (344, 61016095), (430, 48812876), (602, 34866340), (860, 24406438), (1204, 17433170), (1505, 13946536), (1720, 12203219), (2408, 8716585), (3010, 6973268), (6020, 3486634), (12040, 1743317)]