12817805

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{197}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 20870784

約数和(自身を除く): 8052979

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 169, 197, 385, 455, 715, 845, 985, 1001, 1183, 1379, 1859, 2167, 2561, 5005, 5915, 6895, 9295, 10835, 12805, 13013, 15169, 17927, 28171, 33293, 65065, 75845, 89635, 140855, 166465, 197197, 233051, 366223, 985985, 1165255, 1831115, 2563561, 12817805]

約数ペア:

[(1, 12817805), (5, 2563561), (7, 1831115), (11, 1165255), (13, 985985), (35, 366223), (55, 233051), (65, 197197), (77, 166465), (91, 140855), (143, 89635), (169, 75845), (197, 65065), (385, 33293), (455, 28171), (715, 17927), (845, 15169), (985, 13013), (1001, 12805), (1183, 10835), (1379, 9295), (1859, 6895), (2167, 5915), (2561, 5005)]