72057405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1901}}^1$

素因数の和:1954

約数の個数: 48

約数和(自身を含む): 139135104

約数和(自身を除く): 67077699

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 361, 399, 665, 1083, 1805, 1901, 1995, 2527, 5415, 5703, 7581, 9505, 12635, 13307, 28515, 36119, 37905, 39921, 66535, 108357, 180595, 199605, 252833, 541785, 686261, 758499, 1264165, 2058783, 3431305, 3792495, 4803827, 10293915, 14411481, 24019135, 72057405]

約数ペア:

[(1, 72057405), (3, 24019135), (5, 14411481), (7, 10293915), (15, 4803827), (19, 3792495), (21, 3431305), (35, 2058783), (57, 1264165), (95, 758499), (105, 686261), (133, 541785), (285, 252833), (361, 199605), (399, 180595), (665, 108357), (1083, 66535), (1805, 39921), (1901, 37905), (1995, 36119), (2527, 28515), (5415, 13307), (5703, 12635), (7581, 9505)]