311543440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{463}}^1\times {\mathrm{647}}^1$

素因数の和:1136

約数の個数: 80

約数和(自身を含む): 782949888

約数和(自身を除く): 471406448

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 463, 520, 647, 926, 1040, 1294, 1852, 2315, 2588, 3235, 3704, 4630, 5176, 6019, 6470, 7408, 8411, 9260, 10352, 12038, 12940, 16822, 18520, 24076, 25880, 30095, 33644, 37040, 42055, 48152, 51760, 60190, 67288, 84110, 96304, 120380, 134576, 168220, 240760, 299561, 336440, 481520, 599122, 672880, 1198244, 1497805, 2396488, 2995610, 3894293, 4792976, 5991220, 7788586, 11982440, 15577172, 19471465, 23964880, 31154344, 38942930, 62308688, 77885860, 155771720, 311543440]

約数ペア:

[(1, 311543440), (2, 155771720), (4, 77885860), (5, 62308688), (8, 38942930), (10, 31154344), (13, 23964880), (16, 19471465), (20, 15577172), (26, 11982440), (40, 7788586), (52, 5991220), (65, 4792976), (80, 3894293), (104, 2995610), (130, 2396488), (208, 1497805), (260, 1198244), (463, 672880), (520, 599122), (647, 481520), (926, 336440), (1040, 299561), (1294, 240760), (1852, 168220), (2315, 134576), (2588, 120380), (3235, 96304), (3704, 84110), (4630, 67288), (5176, 60190), (6019, 51760), (6470, 48152), (7408, 42055), (8411, 37040), (9260, 33644), (10352, 30095), (12038, 25880), (12940, 24076), (16822, 18520)]