81058740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:454

約数の個数: 144

約数和(自身を含む): 268128000

約数和(自身を除く): 187069260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 79, 84, 98, 105, 140, 147, 158, 196, 210, 237, 245, 294, 316, 349, 395, 420, 474, 490, 553, 588, 698, 735, 790, 948, 980, 1047, 1106, 1185, 1396, 1470, 1580, 1659, 1745, 2094, 2212, 2370, 2443, 2765, 2940, 3318, 3490, 3871, 4188, 4740, 4886, 5235, 5530, 6636, 6980, 7329, 7742, 8295, 9772, 10470, 11060, 11613, 12215, 14658, 15484, 16590, 17101, 19355, 20940, 23226, 24430, 27571, 29316, 33180, 34202, 36645, 38710, 46452, 48860, 51303, 55142, 58065, 68404, 73290, 77420, 82713, 85505, 102606, 110284, 116130, 137855, 146580, 165426, 171010, 192997, 205212, 232260, 256515, 275710, 330852, 342020, 385994, 413565, 513030, 551420, 578991, 771988, 827130, 964985, 1026060, 1157982, 1350979, 1654260, 1929970, 2315964, 2701958, 2894955, 3859940, 4052937, 5403916, 5789910, 6754895, 8105874, 11579820, 13509790, 16211748, 20264685, 27019580, 40529370, 81058740]

約数ペア:

[(1, 81058740), (2, 40529370), (3, 27019580), (4, 20264685), (5, 16211748), (6, 13509790), (7, 11579820), (10, 8105874), (12, 6754895), (14, 5789910), (15, 5403916), (20, 4052937), (21, 3859940), (28, 2894955), (30, 2701958), (35, 2315964), (42, 1929970), (49, 1654260), (60, 1350979), (70, 1157982), (79, 1026060), (84, 964985), (98, 827130), (105, 771988), (140, 578991), (147, 551420), (158, 513030), (196, 413565), (210, 385994), (237, 342020), (245, 330852), (294, 275710), (316, 256515), (349, 232260), (395, 205212), (420, 192997), (474, 171010), (490, 165426), (553, 146580), (588, 137855), (698, 116130), (735, 110284), (790, 102606), (948, 85505), (980, 82713), (1047, 77420), (1106, 73290), (1185, 68404), (1396, 58065), (1470, 55142), (1580, 51303), (1659, 48860), (1745, 46452), (2094, 38710), (2212, 36645), (2370, 34202), (2443, 33180), (2765, 29316), (2940, 27571), (3318, 24430), (3490, 23226), (3871, 20940), (4188, 19355), (4740, 17101), (4886, 16590), (5235, 15484), (5530, 14658), (6636, 12215), (6980, 11613), (7329, 11060), (7742, 10470), (8295, 9772)]