289506560

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{409}}^1$

素因数の和:516

約数の個数: 144

約数和(自身を含む): 804518400

約数和(自身を除く): 515011840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 79, 80, 112, 128, 140, 158, 160, 224, 256, 280, 316, 320, 395, 409, 448, 553, 560, 632, 640, 790, 818, 896, 1106, 1120, 1264, 1280, 1580, 1636, 1792, 2045, 2212, 2240, 2528, 2765, 2863, 3160, 3272, 4090, 4424, 4480, 5056, 5530, 5726, 6320, 6544, 8180, 8848, 8960, 10112, 11060, 11452, 12640, 13088, 14315, 16360, 17696, 20224, 22120, 22904, 25280, 26176, 28630, 32311, 32720, 35392, 44240, 45808, 50560, 52352, 57260, 64622, 65440, 70784, 88480, 91616, 101120, 104704, 114520, 129244, 130880, 141568, 161555, 176960, 183232, 226177, 229040, 258488, 261760, 323110, 353920, 366464, 452354, 458080, 516976, 523520, 646220, 707840, 732928, 904708, 916160, 1033952, 1130885, 1292440, 1809416, 1832320, 2067904, 2261770, 2584880, 3618832, 3664640, 4135808, 4523540, 5169760, 7237664, 8271616, 9047080, 10339520, 14475328, 18094160, 20679040, 28950656, 36188320, 41358080, 57901312, 72376640, 144753280, 289506560]

約数ペア:

[(1, 289506560), (2, 144753280), (4, 72376640), (5, 57901312), (7, 41358080), (8, 36188320), (10, 28950656), (14, 20679040), (16, 18094160), (20, 14475328), (28, 10339520), (32, 9047080), (35, 8271616), (40, 7237664), (56, 5169760), (64, 4523540), (70, 4135808), (79, 3664640), (80, 3618832), (112, 2584880), (128, 2261770), (140, 2067904), (158, 1832320), (160, 1809416), (224, 1292440), (256, 1130885), (280, 1033952), (316, 916160), (320, 904708), (395, 732928), (409, 707840), (448, 646220), (553, 523520), (560, 516976), (632, 458080), (640, 452354), (790, 366464), (818, 353920), (896, 323110), (1106, 261760), (1120, 258488), (1264, 229040), (1280, 226177), (1580, 183232), (1636, 176960), (1792, 161555), (2045, 141568), (2212, 130880), (2240, 129244), (2528, 114520), (2765, 104704), (2863, 101120), (3160, 91616), (3272, 88480), (4090, 70784), (4424, 65440), (4480, 64622), (5056, 57260), (5530, 52352), (5726, 50560), (6320, 45808), (6544, 44240), (8180, 35392), (8848, 32720), (8960, 32311), (10112, 28630), (11060, 26176), (11452, 25280), (12640, 22904), (13088, 22120), (14315, 20224), (16360, 17696)]