15679820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4639}}^1$

素因数の和:4674

約数の個数: 36

約数和(自身を含む): 35663040

約数和(自身を除く): 19983220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 4639, 9278, 18556, 23195, 46390, 60307, 92780, 120614, 241228, 301535, 603070, 783991, 1206140, 1567982, 3135964, 3919955, 7839910, 15679820]

約数ペア:

[(1, 15679820), (2, 7839910), (4, 3919955), (5, 3135964), (10, 1567982), (13, 1206140), (20, 783991), (26, 603070), (52, 301535), (65, 241228), (130, 120614), (169, 92780), (260, 60307), (338, 46390), (676, 23195), (845, 18556), (1690, 9278), (3380, 4639)]