1661940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{1319}}^1$

素因数の和:1341

約数の個数: 72

約数和(自身を含む): 5765760

約数和(自身を除く): 4103820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 1319, 2638, 3957, 5276, 6595, 7914, 9233, 11871, 13190, 15828, 18466, 19785, 23742, 26380, 27699, 36932, 39570, 46165, 47484, 55398, 59355, 79140, 83097, 92330, 110796, 118710, 138495, 166194, 184660, 237420, 276990, 332388, 415485, 553980, 830970, 1661940]

約数ペア:

[(1, 1661940), (2, 830970), (3, 553980), (4, 415485), (5, 332388), (6, 276990), (7, 237420), (9, 184660), (10, 166194), (12, 138495), (14, 118710), (15, 110796), (18, 92330), (20, 83097), (21, 79140), (28, 59355), (30, 55398), (35, 47484), (36, 46165), (42, 39570), (45, 36932), (60, 27699), (63, 26380), (70, 23742), (84, 19785), (90, 18466), (105, 15828), (126, 13190), (140, 11871), (180, 9233), (210, 7914), (252, 6595), (315, 5276), (420, 3957), (630, 2638), (1260, 1319)]