261712920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{947}}^1$

素因数の和:1022

約数の個数: 192

約数和(自身を含む): 933742080

約数和(自身を除く): 672029160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 47, 49, 56, 60, 70, 84, 94, 98, 105, 120, 140, 141, 147, 168, 188, 196, 210, 235, 245, 280, 282, 294, 329, 376, 392, 420, 470, 490, 564, 588, 658, 705, 735, 840, 940, 947, 980, 987, 1128, 1176, 1316, 1410, 1470, 1645, 1880, 1894, 1960, 1974, 2303, 2632, 2820, 2841, 2940, 3290, 3788, 3948, 4606, 4735, 4935, 5640, 5682, 5880, 6580, 6629, 6909, 7576, 7896, 9212, 9470, 9870, 11364, 11515, 13160, 13258, 13818, 14205, 18424, 18940, 19740, 19887, 22728, 23030, 26516, 27636, 28410, 33145, 34545, 37880, 39480, 39774, 44509, 46060, 46403, 53032, 55272, 56820, 66290, 69090, 79548, 89018, 92120, 92806, 99435, 113640, 132580, 133527, 138180, 139209, 159096, 178036, 185612, 198870, 222545, 232015, 265160, 267054, 276360, 278418, 311563, 356072, 371224, 397740, 445090, 464030, 534108, 556836, 623126, 667635, 696045, 795480, 890180, 928060, 934689, 1068216, 1113672, 1246252, 1335270, 1392090, 1557815, 1780360, 1856120, 1869378, 2180941, 2492504, 2670540, 2784180, 3115630, 3738756, 4361882, 4673445, 5341080, 5568360, 6231260, 6542823, 7477512, 8723764, 9346890, 10904705, 12462520, 13085646, 17447528, 18693780, 21809410, 26171292, 32714115, 37387560, 43618820, 52342584, 65428230, 87237640, 130856460, 261712920]

約数ペア:

[(1, 261712920), (2, 130856460), (3, 87237640), (4, 65428230), (5, 52342584), (6, 43618820), (7, 37387560), (8, 32714115), (10, 26171292), (12, 21809410), (14, 18693780), (15, 17447528), (20, 13085646), (21, 12462520), (24, 10904705), (28, 9346890), (30, 8723764), (35, 7477512), (40, 6542823), (42, 6231260), (47, 5568360), (49, 5341080), (56, 4673445), (60, 4361882), (70, 3738756), (84, 3115630), (94, 2784180), (98, 2670540), (105, 2492504), (120, 2180941), (140, 1869378), (141, 1856120), (147, 1780360), (168, 1557815), (188, 1392090), (196, 1335270), (210, 1246252), (235, 1113672), (245, 1068216), (280, 934689), (282, 928060), (294, 890180), (329, 795480), (376, 696045), (392, 667635), (420, 623126), (470, 556836), (490, 534108), (564, 464030), (588, 445090), (658, 397740), (705, 371224), (735, 356072), (840, 311563), (940, 278418), (947, 276360), (980, 267054), (987, 265160), (1128, 232015), (1176, 222545), (1316, 198870), (1410, 185612), (1470, 178036), (1645, 159096), (1880, 139209), (1894, 138180), (1960, 133527), (1974, 132580), (2303, 113640), (2632, 99435), (2820, 92806), (2841, 92120), (2940, 89018), (3290, 79548), (3788, 69090), (3948, 66290), (4606, 56820), (4735, 55272), (4935, 53032), (5640, 46403), (5682, 46060), (5880, 44509), (6580, 39774), (6629, 39480), (6909, 37880), (7576, 34545), (7896, 33145), (9212, 28410), (9470, 27636), (9870, 26516), (11364, 23030), (11515, 22728), (13160, 19887), (13258, 19740), (13818, 18940), (14205, 18424)]