279838275

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1579}}^1$

素因数の和:1748

約数の個数: 48

約数和(自身を含む): 493718400

約数和(自身を除く): 213880125

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 139, 255, 417, 425, 695, 1275, 1579, 2085, 2363, 3475, 4737, 7089, 7895, 10425, 11815, 23685, 26843, 35445, 39475, 59075, 80529, 118425, 134215, 177225, 219481, 402645, 658443, 671075, 1097405, 2013225, 3292215, 3731177, 5487025, 11193531, 16461075, 18655885, 55967655, 93279425, 279838275]

約数ペア:

[(1, 279838275), (3, 93279425), (5, 55967655), (15, 18655885), (17, 16461075), (25, 11193531), (51, 5487025), (75, 3731177), (85, 3292215), (139, 2013225), (255, 1097405), (417, 671075), (425, 658443), (695, 402645), (1275, 219481), (1579, 177225), (2085, 134215), (2363, 118425), (3475, 80529), (4737, 59075), (7089, 39475), (7895, 35445), (10425, 26843), (11815, 23685)]