21577400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:265

約数の個数: 96

約数和(自身を含む): 55569360

約数和(自身を除く): 33991960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 43, 50, 52, 65, 86, 100, 104, 130, 172, 193, 200, 215, 260, 325, 344, 386, 430, 520, 559, 650, 772, 860, 965, 1075, 1118, 1300, 1544, 1720, 1930, 2150, 2236, 2509, 2600, 2795, 3860, 4300, 4472, 4825, 5018, 5590, 7720, 8299, 8600, 9650, 10036, 11180, 12545, 13975, 16598, 19300, 20072, 22360, 25090, 27950, 33196, 38600, 41495, 50180, 55900, 62725, 66392, 82990, 100360, 107887, 111800, 125450, 165980, 207475, 215774, 250900, 331960, 414950, 431548, 501800, 539435, 829900, 863096, 1078870, 1659800, 2157740, 2697175, 4315480, 5394350, 10788700, 21577400]

約数ペア:

[(1, 21577400), (2, 10788700), (4, 5394350), (5, 4315480), (8, 2697175), (10, 2157740), (13, 1659800), (20, 1078870), (25, 863096), (26, 829900), (40, 539435), (43, 501800), (50, 431548), (52, 414950), (65, 331960), (86, 250900), (100, 215774), (104, 207475), (130, 165980), (172, 125450), (193, 111800), (200, 107887), (215, 100360), (260, 82990), (325, 66392), (344, 62725), (386, 55900), (430, 50180), (520, 41495), (559, 38600), (650, 33196), (772, 27950), (860, 25090), (965, 22360), (1075, 20072), (1118, 19300), (1300, 16598), (1544, 13975), (1720, 12545), (1930, 11180), (2150, 10036), (2236, 9650), (2509, 8600), (2600, 8299), (2795, 7720), (3860, 5590), (4300, 5018), (4472, 4825)]