254150260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19949}}^1$

素因数の和:19985

約数の個数: 72

約数和(自身を含む): 668644200

約数和(自身を除く): 414493940

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 12740, 19949, 39898, 79796, 99745, 139643, 199490, 259337, 279286, 398980, 518674, 558572, 698215, 977501, 1037348, 1296685, 1396430, 1815359, 1955002, 2593370, 2792860, 3630718, 3910004, 4887505, 5186740, 7261436, 9076795, 9775010, 12707513, 18153590, 19550020, 25415026, 36307180, 50830052, 63537565, 127075130, 254150260]

約数ペア:

[(1, 254150260), (2, 127075130), (4, 63537565), (5, 50830052), (7, 36307180), (10, 25415026), (13, 19550020), (14, 18153590), (20, 12707513), (26, 9775010), (28, 9076795), (35, 7261436), (49, 5186740), (52, 4887505), (65, 3910004), (70, 3630718), (91, 2792860), (98, 2593370), (130, 1955002), (140, 1815359), (182, 1396430), (196, 1296685), (245, 1037348), (260, 977501), (364, 698215), (455, 558572), (490, 518674), (637, 398980), (910, 279286), (980, 259337), (1274, 199490), (1820, 139643), (2548, 99745), (3185, 79796), (6370, 39898), (12740, 19949)]