640332

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{11}}^2$

素因数の和:49

約数の個数: 108

約数和(自身を含む): 2122680

約数和(自身を除く): 1482348

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 27, 28, 33, 36, 42, 44, 49, 54, 63, 66, 77, 84, 98, 99, 108, 121, 126, 132, 147, 154, 189, 196, 198, 231, 242, 252, 294, 297, 308, 363, 378, 396, 441, 462, 484, 539, 588, 594, 693, 726, 756, 847, 882, 924, 1078, 1089, 1188, 1323, 1386, 1452, 1617, 1694, 1764, 2079, 2156, 2178, 2541, 2646, 2772, 3234, 3267, 3388, 4158, 4356, 4851, 5082, 5292, 5929, 6468, 6534, 7623, 8316, 9702, 10164, 11858, 13068, 14553, 15246, 17787, 19404, 22869, 23716, 29106, 30492, 35574, 45738, 53361, 58212, 71148, 91476, 106722, 160083, 213444, 320166, 640332]

約数ペア:

[(1, 640332), (2, 320166), (3, 213444), (4, 160083), (6, 106722), (7, 91476), (9, 71148), (11, 58212), (12, 53361), (14, 45738), (18, 35574), (21, 30492), (22, 29106), (27, 23716), (28, 22869), (33, 19404), (36, 17787), (42, 15246), (44, 14553), (49, 13068), (54, 11858), (63, 10164), (66, 9702), (77, 8316), (84, 7623), (98, 6534), (99, 6468), (108, 5929), (121, 5292), (126, 5082), (132, 4851), (147, 4356), (154, 4158), (189, 3388), (196, 3267), (198, 3234), (231, 2772), (242, 2646), (252, 2541), (294, 2178), (297, 2156), (308, 2079), (363, 1764), (378, 1694), (396, 1617), (441, 1452), (462, 1386), (484, 1323), (539, 1188), (588, 1089), (594, 1078), (693, 924), (726, 882), (756, 847)]