161219212

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 384265728

約数和(自身を除く): 223046516

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 37, 43, 44, 47, 49, 74, 77, 86, 94, 98, 148, 154, 172, 188, 196, 259, 301, 308, 329, 407, 473, 517, 518, 539, 602, 658, 814, 946, 1034, 1036, 1078, 1204, 1316, 1591, 1628, 1739, 1813, 1892, 2021, 2068, 2107, 2156, 2303, 2849, 3182, 3311, 3478, 3619, 3626, 4042, 4214, 4606, 5698, 6364, 6622, 6956, 7238, 7252, 8084, 8428, 9212, 11137, 11396, 12173, 13244, 14147, 14476, 17501, 19129, 19943, 22231, 22274, 23177, 24346, 25333, 28294, 35002, 38258, 39886, 44462, 44548, 46354, 48692, 50666, 56588, 70004, 74777, 76516, 77959, 79772, 85211, 88924, 92708, 99029, 101332, 122507, 133903, 149554, 155617, 155918, 170422, 198058, 245014, 267806, 299108, 311234, 311836, 340844, 396116, 490028, 523439, 535612, 622468, 822547, 857549, 937321, 1046878, 1089319, 1645094, 1715098, 1874642, 2093756, 2178638, 3290188, 3430196, 3664073, 3749284, 4357276, 5757829, 7328146, 11515658, 14656292, 23031316, 40304803, 80609606, 161219212]

約数ペア:

[(1, 161219212), (2, 80609606), (4, 40304803), (7, 23031316), (11, 14656292), (14, 11515658), (22, 7328146), (28, 5757829), (37, 4357276), (43, 3749284), (44, 3664073), (47, 3430196), (49, 3290188), (74, 2178638), (77, 2093756), (86, 1874642), (94, 1715098), (98, 1645094), (148, 1089319), (154, 1046878), (172, 937321), (188, 857549), (196, 822547), (259, 622468), (301, 535612), (308, 523439), (329, 490028), (407, 396116), (473, 340844), (517, 311836), (518, 311234), (539, 299108), (602, 267806), (658, 245014), (814, 198058), (946, 170422), (1034, 155918), (1036, 155617), (1078, 149554), (1204, 133903), (1316, 122507), (1591, 101332), (1628, 99029), (1739, 92708), (1813, 88924), (1892, 85211), (2021, 79772), (2068, 77959), (2107, 76516), (2156, 74777), (2303, 70004), (2849, 56588), (3182, 50666), (3311, 48692), (3478, 46354), (3619, 44548), (3626, 44462), (4042, 39886), (4214, 38258), (4606, 35002), (5698, 28294), (6364, 25333), (6622, 24346), (6956, 23177), (7238, 22274), (7252, 22231), (8084, 19943), (8428, 19129), (9212, 17501), (11137, 14476), (11396, 14147), (12173, 13244)]