21662320

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 53692992

約数和(自身を除く): 32030672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 61, 80, 92, 115, 122, 184, 193, 230, 244, 305, 368, 386, 460, 488, 610, 772, 920, 965, 976, 1220, 1403, 1544, 1840, 1930, 2440, 2806, 3088, 3860, 4439, 4880, 5612, 7015, 7720, 8878, 11224, 11773, 14030, 15440, 17756, 22195, 22448, 23546, 28060, 35512, 44390, 47092, 56120, 58865, 71024, 88780, 94184, 112240, 117730, 177560, 188368, 235460, 270779, 355120, 470920, 541558, 941840, 1083116, 1353895, 2166232, 2707790, 4332464, 5415580, 10831160, 21662320]

約数ペア:

[(1, 21662320), (2, 10831160), (4, 5415580), (5, 4332464), (8, 2707790), (10, 2166232), (16, 1353895), (20, 1083116), (23, 941840), (40, 541558), (46, 470920), (61, 355120), (80, 270779), (92, 235460), (115, 188368), (122, 177560), (184, 117730), (193, 112240), (230, 94184), (244, 88780), (305, 71024), (368, 58865), (386, 56120), (460, 47092), (488, 44390), (610, 35512), (772, 28060), (920, 23546), (965, 22448), (976, 22195), (1220, 17756), (1403, 15440), (1544, 14030), (1840, 11773), (1930, 11224), (2440, 8878), (2806, 7720), (3088, 7015), (3860, 5612), (4439, 4880)]