138842405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 194456304

約数和(自身を除く): 55613899

約数列:

[1, 5, 13, 19, 61, 65, 95, 97, 247, 305, 361, 485, 793, 1159, 1235, 1261, 1805, 1843, 3965, 4693, 5795, 5917, 6305, 9215, 15067, 22021, 23465, 23959, 29585, 35017, 75335, 76921, 110105, 112423, 119795, 175085, 286273, 384605, 455221, 562115, 1431365, 1461499, 2136037, 2276105, 7307495, 10680185, 27768481, 138842405]

約数ペア:

[(1, 138842405), (5, 27768481), (13, 10680185), (19, 7307495), (61, 2276105), (65, 2136037), (95, 1461499), (97, 1431365), (247, 562115), (305, 455221), (361, 384605), (485, 286273), (793, 175085), (1159, 119795), (1235, 112423), (1261, 110105), (1805, 76921), (1843, 75335), (3965, 35017), (4693, 29585), (5795, 23959), (5917, 23465), (6305, 22021), (9215, 15067)]