2037989840

素因数分解:

$2^4\times 5^1\times {\mathrm{1277}}^1\times {\mathrm{19949}}^1$

素因数の和:21239

約数の個数: 40

約数和(自身を含む): 4742274600

約数和(自身を除く): 2704284760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1277, 2554, 5108, 6385, 10216, 12770, 19949, 20432, 25540, 39898, 51080, 79796, 99745, 102160, 159592, 199490, 319184, 398980, 797960, 1595920, 25474873, 50949746, 101899492, 127374365, 203798984, 254748730, 407597968, 509497460, 1018994920, 2037989840]

約数ペア:

[(1, 2037989840), (2, 1018994920), (4, 509497460), (5, 407597968), (8, 254748730), (10, 203798984), (16, 127374365), (20, 101899492), (40, 50949746), (80, 25474873), (1277, 1595920), (2554, 797960), (5108, 398980), (6385, 319184), (10216, 199490), (12770, 159592), (19949, 102160), (20432, 99745), (25540, 79796), (39898, 51080)]