79980940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23663}}^1$

素因数の和:23698

約数の個数: 36

約数和(自身を含む): 181881504

約数和(自身を除く): 101900564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 23663, 47326, 94652, 118315, 236630, 307619, 473260, 615238, 1230476, 1538095, 3076190, 3999047, 6152380, 7998094, 15996188, 19995235, 39990470, 79980940]

約数ペア:

[(1, 79980940), (2, 39990470), (4, 19995235), (5, 15996188), (10, 7998094), (13, 6152380), (20, 3999047), (26, 3076190), (52, 1538095), (65, 1230476), (130, 615238), (169, 473260), (260, 307619), (338, 236630), (676, 118315), (845, 94652), (1690, 47326), (3380, 23663)]