289409315

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{1553}}^1$

素因数の和:1679

約数の個数: 32

約数和(自身を含む): 388475136

約数和(自身を除く): 99065821

約数列:

[1, 5, 13, 47, 61, 65, 235, 305, 611, 793, 1553, 2867, 3055, 3965, 7765, 14335, 20189, 37271, 72991, 94733, 100945, 186355, 364955, 473665, 948883, 1231529, 4452451, 4744415, 6157645, 22262255, 57881863, 289409315]

約数ペア:

[(1, 289409315), (5, 57881863), (13, 22262255), (47, 6157645), (61, 4744415), (65, 4452451), (235, 1231529), (305, 948883), (611, 473665), (793, 364955), (1553, 186355), (2867, 100945), (3055, 94733), (3965, 72991), (7765, 37271), (14335, 20189)]