20346739220

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{146527}}^1$

素因数の和:146720

約数の個数: 48

約数和(自身を含む): 43866966528

約数和(自身を除く): 23520227308

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 131, 212, 262, 265, 524, 530, 655, 1060, 1310, 2620, 6943, 13886, 27772, 34715, 69430, 138860, 146527, 293054, 586108, 732635, 1465270, 2930540, 7765931, 15531862, 19195037, 31063724, 38390074, 38829655, 76780148, 77659310, 95975185, 155318620, 191950370, 383900740, 1017336961, 2034673922, 4069347844, 5086684805, 10173369610, 20346739220]

約数ペア:

[(1, 20346739220), (2, 10173369610), (4, 5086684805), (5, 4069347844), (10, 2034673922), (20, 1017336961), (53, 383900740), (106, 191950370), (131, 155318620), (212, 95975185), (262, 77659310), (265, 76780148), (524, 38829655), (530, 38390074), (655, 31063724), (1060, 19195037), (1310, 15531862), (2620, 7765931), (6943, 2930540), (13886, 1465270), (27772, 732635), (34715, 586108), (69430, 293054), (138860, 146527)]