20121263625

素因数分解:

$3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1051}}^1\times {\mathrm{2687}}^1$

素因数の和:3775

約数の個数: 64

約数和(自身を含む): 35290644480

約数和(自身を除く): 15169380855

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 125, 285, 375, 475, 1051, 1425, 2375, 2687, 3153, 5255, 7125, 8061, 13435, 15765, 19969, 26275, 40305, 51053, 59907, 67175, 78825, 99845, 131375, 153159, 201525, 255265, 299535, 335875, 394125, 499225, 765795, 1007625, 1276325, 1497675, 2496125, 2824037, 3828975, 6381625, 7488375, 8472111, 14120185, 19144875, 42360555, 53656703, 70600925, 160970109, 211802775, 268283515, 353004625, 804850545, 1059013875, 1341417575, 4024252725, 6707087875, 20121263625]

約数ペア:

[(1, 20121263625), (3, 6707087875), (5, 4024252725), (15, 1341417575), (19, 1059013875), (25, 804850545), (57, 353004625), (75, 268283515), (95, 211802775), (125, 160970109), (285, 70600925), (375, 53656703), (475, 42360555), (1051, 19144875), (1425, 14120185), (2375, 8472111), (2687, 7488375), (3153, 6381625), (5255, 3828975), (7125, 2824037), (8061, 2496125), (13435, 1497675), (15765, 1276325), (19969, 1007625), (26275, 765795), (40305, 499225), (51053, 394125), (59907, 335875), (67175, 299535), (78825, 255265), (99845, 201525), (131375, 153159)]