20009964

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:239

約数の個数: 96

約数和(自身を含む): 54503680

約数和(自身を除く): 34493716

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 43, 52, 57, 76, 78, 86, 114, 129, 156, 157, 172, 228, 247, 258, 314, 471, 494, 516, 559, 628, 741, 817, 942, 988, 1118, 1482, 1634, 1677, 1884, 2041, 2236, 2451, 2964, 2983, 3268, 3354, 4082, 4902, 5966, 6123, 6708, 6751, 8164, 8949, 9804, 10621, 11932, 12246, 13502, 17898, 20253, 21242, 24492, 27004, 31863, 35796, 38779, 40506, 42484, 63726, 77558, 81012, 87763, 116337, 127452, 128269, 155116, 175526, 232674, 256538, 263289, 351052, 384807, 465348, 513076, 526578, 769614, 1053156, 1539228, 1667497, 3334994, 5002491, 6669988, 10004982, 20009964]

約数ペア:

[(1, 20009964), (2, 10004982), (3, 6669988), (4, 5002491), (6, 3334994), (12, 1667497), (13, 1539228), (19, 1053156), (26, 769614), (38, 526578), (39, 513076), (43, 465348), (52, 384807), (57, 351052), (76, 263289), (78, 256538), (86, 232674), (114, 175526), (129, 155116), (156, 128269), (157, 127452), (172, 116337), (228, 87763), (247, 81012), (258, 77558), (314, 63726), (471, 42484), (494, 40506), (516, 38779), (559, 35796), (628, 31863), (741, 27004), (817, 24492), (942, 21242), (988, 20253), (1118, 17898), (1482, 13502), (1634, 12246), (1677, 11932), (1884, 10621), (2041, 9804), (2236, 8949), (2451, 8164), (2964, 6751), (2983, 6708), (3268, 6123), (3354, 5966), (4082, 4902)]