68756060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 155539440

約数和(自身を除く): 86783380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 107, 178, 190, 214, 356, 361, 380, 428, 445, 535, 722, 890, 1070, 1444, 1691, 1780, 1805, 2033, 2140, 3382, 3610, 4066, 6764, 7220, 8132, 8455, 9523, 10165, 16910, 19046, 20330, 32129, 33820, 38092, 38627, 40660, 47615, 64258, 77254, 95230, 128516, 154508, 160645, 180937, 190460, 193135, 321290, 361874, 386270, 642580, 723748, 772540, 904685, 1809370, 3437803, 3618740, 6875606, 13751212, 17189015, 34378030, 68756060]

約数ペア:

[(1, 68756060), (2, 34378030), (4, 17189015), (5, 13751212), (10, 6875606), (19, 3618740), (20, 3437803), (38, 1809370), (76, 904685), (89, 772540), (95, 723748), (107, 642580), (178, 386270), (190, 361874), (214, 321290), (356, 193135), (361, 190460), (380, 180937), (428, 160645), (445, 154508), (535, 128516), (722, 95230), (890, 77254), (1070, 64258), (1444, 47615), (1691, 40660), (1780, 38627), (1805, 38092), (2033, 33820), (2140, 32129), (3382, 20330), (3610, 19046), (4066, 16910), (6764, 10165), (7220, 9523), (8132, 8455)]