78409984

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:495

約数の個数: 72

約数和(自身を含む): 169979040

約数和(自身を除く): 91569056

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 43, 64, 68, 86, 128, 136, 172, 256, 272, 344, 419, 544, 688, 731, 838, 1088, 1376, 1462, 1676, 2176, 2752, 2924, 3352, 4352, 5504, 5848, 6704, 7123, 11008, 11696, 13408, 14246, 18017, 23392, 26816, 28492, 36034, 46784, 53632, 56984, 72068, 93568, 107264, 113968, 144136, 187136, 227936, 288272, 306289, 455872, 576544, 612578, 911744, 1153088, 1225156, 1823488, 2306176, 2450312, 4612352, 4900624, 9801248, 19602496, 39204992, 78409984]

約数ペア:

[(1, 78409984), (2, 39204992), (4, 19602496), (8, 9801248), (16, 4900624), (17, 4612352), (32, 2450312), (34, 2306176), (43, 1823488), (64, 1225156), (68, 1153088), (86, 911744), (128, 612578), (136, 576544), (172, 455872), (256, 306289), (272, 288272), (344, 227936), (419, 187136), (544, 144136), (688, 113968), (731, 107264), (838, 93568), (1088, 72068), (1376, 56984), (1462, 53632), (1676, 46784), (2176, 36034), (2752, 28492), (2924, 26816), (3352, 23392), (4352, 18017), (5504, 14246), (5848, 13408), (6704, 11696), (7123, 11008)]