261617190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1\times {\mathrm{661}}^1$

素因数の和:917

約数の個数: 64

約数和(自身を含む): 640604160

約数和(自身を除く): 378986970

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 79, 158, 167, 237, 334, 395, 474, 501, 661, 790, 835, 1002, 1185, 1322, 1670, 1983, 2370, 2505, 3305, 3966, 5010, 6610, 9915, 13193, 19830, 26386, 39579, 52219, 65965, 79158, 104438, 110387, 131930, 156657, 197895, 220774, 261095, 313314, 331161, 395790, 522190, 551935, 662322, 783285, 1103870, 1566570, 1655805, 3311610, 8720573, 17441146, 26161719, 43602865, 52323438, 87205730, 130808595, 261617190]

約数ペア:

[(1, 261617190), (2, 130808595), (3, 87205730), (5, 52323438), (6, 43602865), (10, 26161719), (15, 17441146), (30, 8720573), (79, 3311610), (158, 1655805), (167, 1566570), (237, 1103870), (334, 783285), (395, 662322), (474, 551935), (501, 522190), (661, 395790), (790, 331161), (835, 313314), (1002, 261095), (1185, 220774), (1322, 197895), (1670, 156657), (1983, 131930), (2370, 110387), (2505, 104438), (3305, 79158), (3966, 65965), (5010, 52219), (6610, 39579), (9915, 26386), (13193, 19830)]