90910720

素因数分解:

$2^{12}\times 5^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:245

約数の個数: 104

約数和(自身を含む): 228823776

約数和(自身を除く): 137913056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 193, 230, 256, 320, 368, 386, 460, 512, 640, 736, 772, 920, 965, 1024, 1280, 1472, 1544, 1840, 1930, 2048, 2560, 2944, 3088, 3680, 3860, 4096, 4439, 5120, 5888, 6176, 7360, 7720, 8878, 10240, 11776, 12352, 14720, 15440, 17756, 20480, 22195, 23552, 24704, 29440, 30880, 35512, 44390, 47104, 49408, 58880, 61760, 71024, 88780, 94208, 98816, 117760, 123520, 142048, 177560, 197632, 235520, 247040, 284096, 355120, 395264, 471040, 494080, 568192, 710240, 790528, 988160, 1136384, 1420480, 1976320, 2272768, 2840960, 3952640, 4545536, 5681920, 9091072, 11363840, 18182144, 22727680, 45455360, 90910720]

約数ペア:

[(1, 90910720), (2, 45455360), (4, 22727680), (5, 18182144), (8, 11363840), (10, 9091072), (16, 5681920), (20, 4545536), (23, 3952640), (32, 2840960), (40, 2272768), (46, 1976320), (64, 1420480), (80, 1136384), (92, 988160), (115, 790528), (128, 710240), (160, 568192), (184, 494080), (193, 471040), (230, 395264), (256, 355120), (320, 284096), (368, 247040), (386, 235520), (460, 197632), (512, 177560), (640, 142048), (736, 123520), (772, 117760), (920, 98816), (965, 94208), (1024, 88780), (1280, 71024), (1472, 61760), (1544, 58880), (1840, 49408), (1930, 47104), (2048, 44390), (2560, 35512), (2944, 30880), (3088, 29440), (3680, 24704), (3860, 23552), (4096, 22195), (4439, 20480), (5120, 17756), (5888, 15440), (6176, 14720), (7360, 12352), (7720, 11776), (8878, 10240)]