209899998

素因数分解:

$2^1\times 3^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:185

約数の個数: 192

約数和(自身を含む): 603832320

約数和(自身を除く): 393932322

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 27, 33, 42, 54, 63, 66, 71, 77, 79, 81, 99, 126, 142, 154, 158, 162, 189, 198, 213, 231, 237, 243, 297, 378, 426, 462, 474, 486, 497, 553, 567, 594, 639, 693, 711, 781, 869, 891, 994, 1106, 1134, 1278, 1386, 1422, 1491, 1562, 1659, 1701, 1738, 1782, 1917, 2079, 2133, 2343, 2607, 2673, 2982, 3318, 3402, 3834, 4158, 4266, 4473, 4686, 4977, 5214, 5346, 5467, 5609, 5751, 6083, 6237, 6399, 7029, 7821, 8946, 9954, 10934, 11218, 11502, 12166, 12474, 12798, 13419, 14058, 14931, 15642, 16401, 16827, 17253, 18249, 18711, 19197, 21087, 23463, 26838, 29862, 32802, 33654, 34506, 36498, 37422, 38394, 39263, 40257, 42174, 44793, 46926, 49203, 50481, 54747, 61699, 63261, 70389, 78526, 80514, 89586, 98406, 100962, 109494, 117789, 120771, 123398, 126522, 134379, 140778, 147609, 151443, 164241, 185097, 189783, 211167, 235578, 241542, 268758, 295218, 302886, 328482, 353367, 370194, 379566, 422334, 431893, 442827, 454329, 492723, 555291, 706734, 863786, 885654, 908658, 985446, 1060101, 1110582, 1295679, 1328481, 1362987, 1478169, 1665873, 2120202, 2591358, 2656962, 2725974, 2956338, 3180303, 3331746, 3887037, 4997619, 6360606, 7774074, 9540909, 9995238, 11661111, 14992857, 19081818, 23322222, 29985714, 34983333, 69966666, 104949999, 209899998]

約数ペア:

[(1, 209899998), (2, 104949999), (3, 69966666), (6, 34983333), (7, 29985714), (9, 23322222), (11, 19081818), (14, 14992857), (18, 11661111), (21, 9995238), (22, 9540909), (27, 7774074), (33, 6360606), (42, 4997619), (54, 3887037), (63, 3331746), (66, 3180303), (71, 2956338), (77, 2725974), (79, 2656962), (81, 2591358), (99, 2120202), (126, 1665873), (142, 1478169), (154, 1362987), (158, 1328481), (162, 1295679), (189, 1110582), (198, 1060101), (213, 985446), (231, 908658), (237, 885654), (243, 863786), (297, 706734), (378, 555291), (426, 492723), (462, 454329), (474, 442827), (486, 431893), (497, 422334), (553, 379566), (567, 370194), (594, 353367), (639, 328482), (693, 302886), (711, 295218), (781, 268758), (869, 241542), (891, 235578), (994, 211167), (1106, 189783), (1134, 185097), (1278, 164241), (1386, 151443), (1422, 147609), (1491, 140778), (1562, 134379), (1659, 126522), (1701, 123398), (1738, 120771), (1782, 117789), (1917, 109494), (2079, 100962), (2133, 98406), (2343, 89586), (2607, 80514), (2673, 78526), (2982, 70389), (3318, 63261), (3402, 61699), (3834, 54747), (4158, 50481), (4266, 49203), (4473, 46926), (4686, 44793), (4977, 42174), (5214, 40257), (5346, 39263), (5467, 38394), (5609, 37422), (5751, 36498), (6083, 34506), (6237, 33654), (6399, 32802), (7029, 29862), (7821, 26838), (8946, 23463), (9954, 21087), (10934, 19197), (11218, 18711), (11502, 18249), (12166, 17253), (12474, 16827), (12798, 16401), (13419, 15642), (14058, 14931)]