20601420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:471

約数の個数: 96

約数和(自身を含む): 66533376

約数和(自身を除く): 45931956

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 181, 210, 271, 362, 420, 542, 543, 724, 813, 905, 1084, 1086, 1267, 1355, 1626, 1810, 1897, 2172, 2534, 2710, 2715, 3252, 3620, 3794, 3801, 4065, 5068, 5420, 5430, 5691, 6335, 7588, 7602, 8130, 9485, 10860, 11382, 12670, 15204, 16260, 18970, 19005, 22764, 25340, 28455, 37940, 38010, 49051, 56910, 76020, 98102, 113820, 147153, 196204, 245255, 294306, 343357, 490510, 588612, 686714, 735765, 981020, 1030071, 1373428, 1471530, 1716785, 2060142, 2943060, 3433570, 4120284, 5150355, 6867140, 10300710, 20601420]

約数ペア:

[(1, 20601420), (2, 10300710), (3, 6867140), (4, 5150355), (5, 4120284), (6, 3433570), (7, 2943060), (10, 2060142), (12, 1716785), (14, 1471530), (15, 1373428), (20, 1030071), (21, 981020), (28, 735765), (30, 686714), (35, 588612), (42, 490510), (60, 343357), (70, 294306), (84, 245255), (105, 196204), (140, 147153), (181, 113820), (210, 98102), (271, 76020), (362, 56910), (420, 49051), (542, 38010), (543, 37940), (724, 28455), (813, 25340), (905, 22764), (1084, 19005), (1086, 18970), (1267, 16260), (1355, 15204), (1626, 12670), (1810, 11382), (1897, 10860), (2172, 9485), (2534, 8130), (2710, 7602), (2715, 7588), (3252, 6335), (3620, 5691), (3794, 5430), (3801, 5420), (4065, 5068)]