19540850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1801}}^1$

素因数の和:1851

約数の個数: 48

約数和(自身を含む): 42902016

約数和(自身を除く): 23361166

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 50, 62, 70, 155, 175, 217, 310, 350, 434, 775, 1085, 1550, 1801, 2170, 3602, 5425, 9005, 10850, 12607, 18010, 25214, 45025, 55831, 63035, 90050, 111662, 126070, 279155, 315175, 390817, 558310, 630350, 781634, 1395775, 1954085, 2791550, 3908170, 9770425, 19540850]

約数ペア:

[(1, 19540850), (2, 9770425), (5, 3908170), (7, 2791550), (10, 1954085), (14, 1395775), (25, 781634), (31, 630350), (35, 558310), (50, 390817), (62, 315175), (70, 279155), (155, 126070), (175, 111662), (217, 90050), (310, 63035), (350, 55831), (434, 45025), (775, 25214), (1085, 18010), (1550, 12607), (1801, 10850), (2170, 9005), (3602, 5425)]