81384810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:300

約数の個数: 128

約数和(自身を含む): 225662976

約数和(自身を除く): 144278166

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 43, 46, 65, 69, 78, 86, 115, 129, 130, 138, 195, 211, 215, 230, 258, 299, 345, 390, 422, 430, 559, 598, 633, 645, 690, 897, 989, 1055, 1118, 1266, 1290, 1495, 1677, 1794, 1978, 2110, 2743, 2795, 2967, 2990, 3165, 3354, 4485, 4853, 4945, 5486, 5590, 5934, 6330, 8229, 8385, 8970, 9073, 9706, 9890, 12857, 13715, 14559, 14835, 16458, 16770, 18146, 24265, 25714, 27219, 27430, 29118, 29670, 38571, 41145, 45365, 48530, 54438, 63089, 64285, 72795, 77142, 82290, 90730, 117949, 126178, 128570, 136095, 145590, 189267, 192855, 208679, 235898, 272190, 315445, 353847, 378534, 385710, 417358, 589745, 626037, 630890, 707694, 946335, 1043395, 1179490, 1252074, 1769235, 1892670, 2086790, 2712827, 3130185, 3538470, 5425654, 6260370, 8138481, 13564135, 16276962, 27128270, 40692405, 81384810]

約数ペア:

[(1, 81384810), (2, 40692405), (3, 27128270), (5, 16276962), (6, 13564135), (10, 8138481), (13, 6260370), (15, 5425654), (23, 3538470), (26, 3130185), (30, 2712827), (39, 2086790), (43, 1892670), (46, 1769235), (65, 1252074), (69, 1179490), (78, 1043395), (86, 946335), (115, 707694), (129, 630890), (130, 626037), (138, 589745), (195, 417358), (211, 385710), (215, 378534), (230, 353847), (258, 315445), (299, 272190), (345, 235898), (390, 208679), (422, 192855), (430, 189267), (559, 145590), (598, 136095), (633, 128570), (645, 126178), (690, 117949), (897, 90730), (989, 82290), (1055, 77142), (1118, 72795), (1266, 64285), (1290, 63089), (1495, 54438), (1677, 48530), (1794, 45365), (1978, 41145), (2110, 38571), (2743, 29670), (2795, 29118), (2967, 27430), (2990, 27219), (3165, 25714), (3354, 24265), (4485, 18146), (4853, 16770), (4945, 16458), (5486, 14835), (5590, 14559), (5934, 13715), (6330, 12857), (8229, 9890), (8385, 9706), (8970, 9073)]