20854528898

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{443}}^1\times {\mathrm{1423}}^1$

素因数の和:2031

約数の個数: 64

約数和(自身を含む): 38238842880

約数和(自身を除く): 17384313982

約数列:

[1, 2, 7, 14, 17, 34, 119, 139, 238, 278, 443, 886, 973, 1423, 1946, 2363, 2846, 3101, 4726, 6202, 7531, 9961, 15062, 16541, 19922, 24191, 33082, 48382, 52717, 61577, 105434, 123154, 169337, 197797, 338674, 395594, 431039, 630389, 862078, 1046809, 1260778, 1384579, 2093618, 2769158, 3362549, 4412723, 6725098, 7327663, 8825446, 10716613, 14655326, 21433226, 23537843, 47075686, 75016291, 87624071, 150032582, 175248142, 613368497, 1226736994, 1489609207, 2979218414, 10427264449, 20854528898]

約数ペア:

[(1, 20854528898), (2, 10427264449), (7, 2979218414), (14, 1489609207), (17, 1226736994), (34, 613368497), (119, 175248142), (139, 150032582), (238, 87624071), (278, 75016291), (443, 47075686), (886, 23537843), (973, 21433226), (1423, 14655326), (1946, 10716613), (2363, 8825446), (2846, 7327663), (3101, 6725098), (4726, 4412723), (6202, 3362549), (7531, 2769158), (9961, 2093618), (15062, 1384579), (16541, 1260778), (19922, 1046809), (24191, 862078), (33082, 630389), (48382, 431039), (52717, 395594), (61577, 338674), (105434, 197797), (123154, 169337)]