78815340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2531}}^1$

素因数の和:2719

約数の個数: 72

約数和(自身を含む): 240550128

約数和(自身を除く): 161734788

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 173, 180, 346, 519, 692, 865, 1038, 1557, 1730, 2076, 2531, 2595, 3114, 3460, 5062, 5190, 6228, 7593, 7785, 10124, 10380, 12655, 15186, 15570, 22779, 25310, 30372, 31140, 37965, 45558, 50620, 75930, 91116, 113895, 151860, 227790, 437863, 455580, 875726, 1313589, 1751452, 2189315, 2627178, 3940767, 4378630, 5254356, 6567945, 7881534, 8757260, 13135890, 15763068, 19703835, 26271780, 39407670, 78815340]

約数ペア:

[(1, 78815340), (2, 39407670), (3, 26271780), (4, 19703835), (5, 15763068), (6, 13135890), (9, 8757260), (10, 7881534), (12, 6567945), (15, 5254356), (18, 4378630), (20, 3940767), (30, 2627178), (36, 2189315), (45, 1751452), (60, 1313589), (90, 875726), (173, 455580), (180, 437863), (346, 227790), (519, 151860), (692, 113895), (865, 91116), (1038, 75930), (1557, 50620), (1730, 45558), (2076, 37965), (2531, 31140), (2595, 30372), (3114, 25310), (3460, 22779), (5062, 15570), (5190, 15186), (6228, 12655), (7593, 10380), (7785, 10124)]