17890690

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:418

約数の個数: 32

約数和(自身を含む): 33122880

約数和(自身を除く): 15232190

約数列:

[1, 2, 5, 10, 61, 122, 139, 211, 278, 305, 422, 610, 695, 1055, 1390, 2110, 8479, 12871, 16958, 25742, 29329, 42395, 58658, 64355, 84790, 128710, 146645, 293290, 1789069, 3578138, 8945345, 17890690]

約数ペア:

[(1, 17890690), (2, 8945345), (5, 3578138), (10, 1789069), (61, 293290), (122, 146645), (139, 128710), (211, 84790), (278, 64355), (305, 58658), (422, 42395), (610, 29329), (695, 25742), (1055, 16958), (1390, 12871), (2110, 8479)]