40678120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1109}}^1$

素因数の和:1258

約数の個数: 64

約数和(自身を含む): 105494400

約数和(自身を除く): 64816280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 262, 280, 524, 655, 917, 1048, 1109, 1310, 1834, 2218, 2620, 3668, 4436, 4585, 5240, 5545, 7336, 7763, 8872, 9170, 11090, 15526, 18340, 22180, 31052, 36680, 38815, 44360, 62104, 77630, 145279, 155260, 290558, 310520, 581116, 726395, 1016953, 1162232, 1452790, 2033906, 2905580, 4067812, 5084765, 5811160, 8135624, 10169530, 20339060, 40678120]

約数ペア:

[(1, 40678120), (2, 20339060), (4, 10169530), (5, 8135624), (7, 5811160), (8, 5084765), (10, 4067812), (14, 2905580), (20, 2033906), (28, 1452790), (35, 1162232), (40, 1016953), (56, 726395), (70, 581116), (131, 310520), (140, 290558), (262, 155260), (280, 145279), (524, 77630), (655, 62104), (917, 44360), (1048, 38815), (1109, 36680), (1310, 31052), (1834, 22180), (2218, 18340), (2620, 15526), (3668, 11090), (4436, 9170), (4585, 8872), (5240, 7763), (5545, 7336)]