20668416

素因数分解:

$2^{13}\times 3^1\times {\mathrm{29}}^2$

素因数の和:87

約数の個数: 84

約数和(自身を含む): 57078372

約数和(自身を除く): 36409956

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 32, 48, 58, 64, 87, 96, 116, 128, 174, 192, 232, 256, 348, 384, 464, 512, 696, 768, 841, 928, 1024, 1392, 1536, 1682, 1856, 2048, 2523, 2784, 3072, 3364, 3712, 4096, 5046, 5568, 6144, 6728, 7424, 8192, 10092, 11136, 12288, 13456, 14848, 20184, 22272, 24576, 26912, 29696, 40368, 44544, 53824, 59392, 80736, 89088, 107648, 118784, 161472, 178176, 215296, 237568, 322944, 356352, 430592, 645888, 712704, 861184, 1291776, 1722368, 2583552, 3444736, 5167104, 6889472, 10334208, 20668416]

約数ペア:

[(1, 20668416), (2, 10334208), (3, 6889472), (4, 5167104), (6, 3444736), (8, 2583552), (12, 1722368), (16, 1291776), (24, 861184), (29, 712704), (32, 645888), (48, 430592), (58, 356352), (64, 322944), (87, 237568), (96, 215296), (116, 178176), (128, 161472), (174, 118784), (192, 107648), (232, 89088), (256, 80736), (348, 59392), (384, 53824), (464, 44544), (512, 40368), (696, 29696), (768, 26912), (841, 24576), (928, 22272), (1024, 20184), (1392, 14848), (1536, 13456), (1682, 12288), (1856, 11136), (2048, 10092), (2523, 8192), (2784, 7424), (3072, 6728), (3364, 6144), (3712, 5568), (4096, 5046)]