28889120

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:107

約数の個数: 192

約数和(自身を含む): 83825280

約数和(自身を除く): 54936160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 19, 20, 26, 32, 34, 38, 40, 43, 52, 65, 68, 76, 80, 85, 86, 95, 104, 130, 136, 152, 160, 170, 172, 190, 208, 215, 221, 247, 260, 272, 304, 323, 340, 344, 380, 416, 430, 442, 494, 520, 544, 559, 608, 646, 680, 688, 731, 760, 817, 860, 884, 988, 1040, 1105, 1118, 1235, 1292, 1360, 1376, 1462, 1520, 1615, 1634, 1720, 1768, 1976, 2080, 2210, 2236, 2470, 2584, 2720, 2795, 2924, 3040, 3230, 3268, 3440, 3536, 3655, 3952, 4085, 4199, 4420, 4472, 4940, 5168, 5590, 5848, 6460, 6536, 6880, 7072, 7310, 7904, 8170, 8398, 8840, 8944, 9503, 9880, 10336, 10621, 11180, 11696, 12920, 13072, 13889, 14620, 16340, 16796, 17680, 17888, 19006, 19760, 20995, 21242, 22360, 23392, 25840, 26144, 27778, 29240, 32680, 33592, 35360, 38012, 39520, 41990, 42484, 44720, 47515, 51680, 53105, 55556, 58480, 65360, 67184, 69445, 76024, 83980, 84968, 89440, 95030, 106210, 111112, 116960, 130720, 134368, 138890, 152048, 167960, 169936, 180557, 190060, 212420, 222224, 277780, 304096, 335920, 339872, 361114, 380120, 424840, 444448, 555560, 671840, 722228, 760240, 849680, 902785, 1111120, 1444456, 1520480, 1699360, 1805570, 2222240, 2888912, 3611140, 5777824, 7222280, 14444560, 28889120]

約数ペア:

[(1, 28889120), (2, 14444560), (4, 7222280), (5, 5777824), (8, 3611140), (10, 2888912), (13, 2222240), (16, 1805570), (17, 1699360), (19, 1520480), (20, 1444456), (26, 1111120), (32, 902785), (34, 849680), (38, 760240), (40, 722228), (43, 671840), (52, 555560), (65, 444448), (68, 424840), (76, 380120), (80, 361114), (85, 339872), (86, 335920), (95, 304096), (104, 277780), (130, 222224), (136, 212420), (152, 190060), (160, 180557), (170, 169936), (172, 167960), (190, 152048), (208, 138890), (215, 134368), (221, 130720), (247, 116960), (260, 111112), (272, 106210), (304, 95030), (323, 89440), (340, 84968), (344, 83980), (380, 76024), (416, 69445), (430, 67184), (442, 65360), (494, 58480), (520, 55556), (544, 53105), (559, 51680), (608, 47515), (646, 44720), (680, 42484), (688, 41990), (731, 39520), (760, 38012), (817, 35360), (860, 33592), (884, 32680), (988, 29240), (1040, 27778), (1105, 26144), (1118, 25840), (1235, 23392), (1292, 22360), (1360, 21242), (1376, 20995), (1462, 19760), (1520, 19006), (1615, 17888), (1634, 17680), (1720, 16796), (1768, 16340), (1976, 14620), (2080, 13889), (2210, 13072), (2236, 12920), (2470, 11696), (2584, 11180), (2720, 10621), (2795, 10336), (2924, 9880), (3040, 9503), (3230, 8944), (3268, 8840), (3440, 8398), (3536, 8170), (3655, 7904), (3952, 7310), (4085, 7072), (4199, 6880), (4420, 6536), (4472, 6460), (4940, 5848), (5168, 5590)]