75720680

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{5519}}^1$

素因数の和:5551

約数の個数: 64

約数和(自身を含む): 198720000

約数和(自身を除く): 122999320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 5519, 6860, 11038, 13720, 22076, 27595, 38633, 44152, 55190, 77266, 110380, 154532, 193165, 220760, 270431, 309064, 386330, 540862, 772660, 1081724, 1352155, 1545320, 1893017, 2163448, 2704310, 3786034, 5408620, 7572068, 9465085, 10817240, 15144136, 18930170, 37860340, 75720680]

約数ペア:

[(1, 75720680), (2, 37860340), (4, 18930170), (5, 15144136), (7, 10817240), (8, 9465085), (10, 7572068), (14, 5408620), (20, 3786034), (28, 2704310), (35, 2163448), (40, 1893017), (49, 1545320), (56, 1352155), (70, 1081724), (98, 772660), (140, 540862), (196, 386330), (245, 309064), (280, 270431), (343, 220760), (392, 193165), (490, 154532), (686, 110380), (980, 77266), (1372, 55190), (1715, 44152), (1960, 38633), (2744, 27595), (3430, 22076), (5519, 13720), (6860, 11038)]