81512295

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1\times {\mathrm{647}}^1$

素因数の和:919

約数の個数: 32

約数和(自身を含む): 134742528

約数和(自身を除く): 53230233

約数列:

[1, 3, 5, 15, 37, 111, 185, 227, 555, 647, 681, 1135, 1941, 3235, 3405, 8399, 9705, 23939, 25197, 41995, 71817, 119695, 125985, 146869, 359085, 440607, 734345, 2203035, 5434153, 16302459, 27170765, 81512295]

約数ペア:

[(1, 81512295), (3, 27170765), (5, 16302459), (15, 5434153), (37, 2203035), (111, 734345), (185, 440607), (227, 359085), (555, 146869), (647, 125985), (681, 119695), (1135, 71817), (1941, 41995), (3235, 25197), (3405, 23939), (8399, 9705)]