131618620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{25409}}^1$

素因数の和:25462

約数の個数: 48

約数和(自身を含む): 324434880

約数和(自身を除く): 192816260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 25409, 50818, 101636, 127045, 177863, 254090, 355726, 508180, 711452, 889315, 940133, 1778630, 1880266, 3557260, 3760532, 4700665, 6580931, 9401330, 13161862, 18802660, 26323724, 32904655, 65809310, 131618620]

約数ペア:

[(1, 131618620), (2, 65809310), (4, 32904655), (5, 26323724), (7, 18802660), (10, 13161862), (14, 9401330), (20, 6580931), (28, 4700665), (35, 3760532), (37, 3557260), (70, 1880266), (74, 1778630), (140, 940133), (148, 889315), (185, 711452), (259, 508180), (370, 355726), (518, 254090), (740, 177863), (1036, 127045), (1295, 101636), (2590, 50818), (5180, 25409)]