20417580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1693}}^1$

素因数の和:1775

約数の個数: 72

約数和(自身を含む): 62894832

約数和(自身を除く): 42477252

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 67, 90, 134, 180, 201, 268, 335, 402, 603, 670, 804, 1005, 1206, 1340, 1693, 2010, 2412, 3015, 3386, 4020, 5079, 6030, 6772, 8465, 10158, 12060, 15237, 16930, 20316, 25395, 30474, 33860, 50790, 60948, 76185, 101580, 113431, 152370, 226862, 304740, 340293, 453724, 567155, 680586, 1020879, 1134310, 1361172, 1701465, 2041758, 2268620, 3402930, 4083516, 5104395, 6805860, 10208790, 20417580]

約数ペア:

[(1, 20417580), (2, 10208790), (3, 6805860), (4, 5104395), (5, 4083516), (6, 3402930), (9, 2268620), (10, 2041758), (12, 1701465), (15, 1361172), (18, 1134310), (20, 1020879), (30, 680586), (36, 567155), (45, 453724), (60, 340293), (67, 304740), (90, 226862), (134, 152370), (180, 113431), (201, 101580), (268, 76185), (335, 60948), (402, 50790), (603, 33860), (670, 30474), (804, 25395), (1005, 20316), (1206, 16930), (1340, 15237), (1693, 12060), (2010, 10158), (2412, 8465), (3015, 6772), (3386, 6030), (4020, 5079)]