16740220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1097}}^1$

素因数の和:1222

約数の個数: 48

約数和(自身を含む): 40582080

約数和(自身を除く): 23841860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1097, 1526, 2180, 2194, 3052, 3815, 4388, 5485, 7630, 7679, 10970, 15260, 15358, 21940, 30716, 38395, 76790, 119573, 153580, 239146, 478292, 597865, 837011, 1195730, 1674022, 2391460, 3348044, 4185055, 8370110, 16740220]

約数ペア:

[(1, 16740220), (2, 8370110), (4, 4185055), (5, 3348044), (7, 2391460), (10, 1674022), (14, 1195730), (20, 837011), (28, 597865), (35, 478292), (70, 239146), (109, 153580), (140, 119573), (218, 76790), (436, 38395), (545, 30716), (763, 21940), (1090, 15358), (1097, 15260), (1526, 10970), (2180, 7679), (2194, 7630), (3052, 5485), (3815, 4388)]