20120783956

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{18757}}^1$

素因数の和:19209

約数の個数: 72

約数和(自身を含む): 44218083336

約数和(自身を除く): 24097299380

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 421, 637, 842, 1274, 1684, 2548, 2947, 5473, 5894, 10946, 11788, 18757, 20629, 21892, 37514, 38311, 41258, 75028, 76622, 82516, 131299, 153244, 243841, 262598, 268177, 487682, 525196, 536354, 919093, 975364, 1072708, 1706887, 1838186, 3413774, 3676372, 6827548, 7896697, 11948209, 15793394, 23896418, 31586788, 47792836, 55276879, 102657061, 110553758, 205314122, 221107516, 386938153, 410628244, 718599427, 773876306, 1437198854, 1547752612, 2874397708, 5030195989, 10060391978, 20120783956]

約数ペア:

[(1, 20120783956), (2, 10060391978), (4, 5030195989), (7, 2874397708), (13, 1547752612), (14, 1437198854), (26, 773876306), (28, 718599427), (49, 410628244), (52, 386938153), (91, 221107516), (98, 205314122), (182, 110553758), (196, 102657061), (364, 55276879), (421, 47792836), (637, 31586788), (842, 23896418), (1274, 15793394), (1684, 11948209), (2548, 7896697), (2947, 6827548), (5473, 3676372), (5894, 3413774), (10946, 1838186), (11788, 1706887), (18757, 1072708), (20629, 975364), (21892, 919093), (37514, 536354), (38311, 525196), (41258, 487682), (75028, 268177), (76622, 262598), (82516, 243841), (131299, 153244)]