138889490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:443

約数の個数: 64

約数和(自身を含む): 276576768

約数和(自身を除く): 137687278

約数列:

[1, 2, 5, 10, 17, 34, 37, 71, 74, 85, 142, 170, 185, 311, 355, 370, 622, 629, 710, 1207, 1258, 1555, 2414, 2627, 3110, 3145, 5254, 5287, 6035, 6290, 10574, 11507, 12070, 13135, 22081, 23014, 26270, 26435, 44162, 44659, 52870, 57535, 89318, 110405, 115070, 195619, 220810, 223295, 375377, 391238, 446590, 750754, 816997, 978095, 1633994, 1876885, 1956190, 3753770, 4084985, 8169970, 13888949, 27777898, 69444745, 138889490]

約数ペア:

[(1, 138889490), (2, 69444745), (5, 27777898), (10, 13888949), (17, 8169970), (34, 4084985), (37, 3753770), (71, 1956190), (74, 1876885), (85, 1633994), (142, 978095), (170, 816997), (185, 750754), (311, 446590), (355, 391238), (370, 375377), (622, 223295), (629, 220810), (710, 195619), (1207, 115070), (1258, 110405), (1555, 89318), (2414, 57535), (2627, 52870), (3110, 44659), (3145, 44162), (5254, 26435), (5287, 26270), (6035, 23014), (6290, 22081), (10574, 13135), (11507, 12070)]