20161172898

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1\times {\mathrm{661}}^1$

素因数の和:1120

約数の個数: 96

約数和(自身を含む): 45230657472

約数和(自身を除く): 25069484574

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 157, 251, 258, 314, 387, 471, 502, 661, 753, 774, 942, 1322, 1413, 1506, 1983, 2259, 2826, 3966, 4518, 5949, 6751, 10793, 11898, 13502, 20253, 21586, 28423, 32379, 39407, 40506, 56846, 60759, 64758, 78814, 85269, 97137, 103777, 118221, 121518, 165911, 170538, 194274, 207554, 236442, 255807, 311331, 331822, 354663, 497733, 511614, 622662, 709326, 933993, 995466, 1493199, 1694501, 1867986, 2986398, 3389002, 4462411, 5083503, 7134173, 8924822, 10167006, 13387233, 14268346, 15250509, 21402519, 26048027, 26774466, 30501018, 40161699, 42805038, 52096054, 64207557, 78144081, 80323398, 128415114, 156288162, 234432243, 468864486, 1120065161, 2240130322, 3360195483, 6720390966, 10080586449, 20161172898]

約数ペア:

[(1, 20161172898), (2, 10080586449), (3, 6720390966), (6, 3360195483), (9, 2240130322), (18, 1120065161), (43, 468864486), (86, 234432243), (129, 156288162), (157, 128415114), (251, 80323398), (258, 78144081), (314, 64207557), (387, 52096054), (471, 42805038), (502, 40161699), (661, 30501018), (753, 26774466), (774, 26048027), (942, 21402519), (1322, 15250509), (1413, 14268346), (1506, 13387233), (1983, 10167006), (2259, 8924822), (2826, 7134173), (3966, 5083503), (4518, 4462411), (5949, 3389002), (6751, 2986398), (10793, 1867986), (11898, 1694501), (13502, 1493199), (20253, 995466), (21586, 933993), (28423, 709326), (32379, 622662), (39407, 511614), (40506, 497733), (56846, 354663), (60759, 331822), (64758, 311331), (78814, 255807), (85269, 236442), (97137, 207554), (103777, 194274), (118221, 170538), (121518, 165911)]