12138980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2797}}^1$

素因数の和:2844

約数の個数: 48

約数和(自身を含む): 30084096

約数和(自身を除く): 17945116

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 2797, 4340, 5594, 11188, 13985, 19579, 27970, 39158, 55940, 78316, 86707, 97895, 173414, 195790, 346828, 391580, 433535, 606949, 867070, 1213898, 1734140, 2427796, 3034745, 6069490, 12138980]

約数ペア:

[(1, 12138980), (2, 6069490), (4, 3034745), (5, 2427796), (7, 1734140), (10, 1213898), (14, 867070), (20, 606949), (28, 433535), (31, 391580), (35, 346828), (62, 195790), (70, 173414), (124, 97895), (140, 86707), (155, 78316), (217, 55940), (310, 39158), (434, 27970), (620, 19579), (868, 13985), (1085, 11188), (2170, 5594), (2797, 4340)]