20165638920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{152909}}^1$

素因数の和:153087

約数の個数: 128

約数和(自身を含む): 69580166400

約数和(自身を除く): 49414527480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 157, 168, 210, 280, 314, 420, 471, 628, 785, 840, 942, 1099, 1256, 1570, 1884, 2198, 2355, 3140, 3297, 3768, 4396, 4710, 5495, 6280, 6594, 8792, 9420, 10990, 13188, 16485, 18840, 21980, 26376, 32970, 43960, 65940, 131880, 152909, 305818, 458727, 611636, 764545, 917454, 1070363, 1223272, 1529090, 1834908, 2140726, 2293635, 3058180, 3211089, 3669816, 4281452, 4587270, 5351815, 6116360, 6422178, 8562904, 9174540, 10703630, 12844356, 16055445, 18349080, 21407260, 24006713, 25688712, 32110890, 42814520, 48013426, 64221780, 72020139, 96026852, 120033565, 128443560, 144040278, 168046991, 192053704, 240067130, 288080556, 336093982, 360100695, 480134260, 504140973, 576161112, 672187964, 720201390, 840234955, 960268520, 1008281946, 1344375928, 1440402780, 1680469910, 2016563892, 2520704865, 2880805560, 3360939820, 4033127784, 5041409730, 6721879640, 10082819460, 20165638920]

約数ペア:

[(1, 20165638920), (2, 10082819460), (3, 6721879640), (4, 5041409730), (5, 4033127784), (6, 3360939820), (7, 2880805560), (8, 2520704865), (10, 2016563892), (12, 1680469910), (14, 1440402780), (15, 1344375928), (20, 1008281946), (21, 960268520), (24, 840234955), (28, 720201390), (30, 672187964), (35, 576161112), (40, 504140973), (42, 480134260), (56, 360100695), (60, 336093982), (70, 288080556), (84, 240067130), (105, 192053704), (120, 168046991), (140, 144040278), (157, 128443560), (168, 120033565), (210, 96026852), (280, 72020139), (314, 64221780), (420, 48013426), (471, 42814520), (628, 32110890), (785, 25688712), (840, 24006713), (942, 21407260), (1099, 18349080), (1256, 16055445), (1570, 12844356), (1884, 10703630), (2198, 9174540), (2355, 8562904), (3140, 6422178), (3297, 6116360), (3768, 5351815), (4396, 4587270), (4710, 4281452), (5495, 3669816), (6280, 3211089), (6594, 3058180), (8792, 2293635), (9420, 2140726), (10990, 1834908), (13188, 1529090), (16485, 1223272), (18840, 1070363), (21980, 917454), (26376, 764545), (32970, 611636), (43960, 458727), (65940, 305818), (131880, 152909)]