56987440

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 137134080

約数和(自身を除く): 80146640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 79, 80, 127, 142, 158, 254, 284, 316, 355, 395, 508, 568, 632, 635, 710, 790, 1016, 1136, 1264, 1270, 1420, 1580, 2032, 2540, 2840, 3160, 5080, 5609, 5680, 6320, 9017, 10033, 10160, 11218, 18034, 20066, 22436, 28045, 36068, 40132, 44872, 45085, 50165, 56090, 72136, 80264, 89744, 90170, 100330, 112180, 144272, 160528, 180340, 200660, 224360, 360680, 401320, 448720, 712343, 721360, 802640, 1424686, 2849372, 3561715, 5698744, 7123430, 11397488, 14246860, 28493720, 56987440]

約数ペア:

[(1, 56987440), (2, 28493720), (4, 14246860), (5, 11397488), (8, 7123430), (10, 5698744), (16, 3561715), (20, 2849372), (40, 1424686), (71, 802640), (79, 721360), (80, 712343), (127, 448720), (142, 401320), (158, 360680), (254, 224360), (284, 200660), (316, 180340), (355, 160528), (395, 144272), (508, 112180), (568, 100330), (632, 90170), (635, 89744), (710, 80264), (790, 72136), (1016, 56090), (1136, 50165), (1264, 45085), (1270, 44872), (1420, 40132), (1580, 36068), (2032, 28045), (2540, 22436), (2840, 20066), (3160, 18034), (5080, 11218), (5609, 10160), (5680, 10033), (6320, 9017)]