19720610

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1667}}^1$

素因数の和:1707

約数の個数: 48

約数和(自身を含む): 43955136

約数和(自身を除く): 24234526

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 169, 182, 338, 455, 845, 910, 1183, 1667, 1690, 2366, 3334, 5915, 8335, 11669, 11830, 16670, 21671, 23338, 43342, 58345, 108355, 116690, 151697, 216710, 281723, 303394, 563446, 758485, 1408615, 1516970, 1972061, 2817230, 3944122, 9860305, 19720610]

約数ペア:

[(1, 19720610), (2, 9860305), (5, 3944122), (7, 2817230), (10, 1972061), (13, 1516970), (14, 1408615), (26, 758485), (35, 563446), (65, 303394), (70, 281723), (91, 216710), (130, 151697), (169, 116690), (182, 108355), (338, 58345), (455, 43342), (845, 23338), (910, 21671), (1183, 16670), (1667, 11830), (1690, 11669), (2366, 8335), (3334, 5915)]