1998440080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1301}}^1$

素因数の和:1545

約数の個数: 160

約数和(自身を含む): 5750131968

約数和(自身を除く): 3751691888

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 211, 260, 280, 364, 422, 455, 520, 560, 728, 844, 910, 1040, 1055, 1301, 1456, 1477, 1688, 1820, 2110, 2602, 2743, 2954, 3376, 3640, 4220, 5204, 5486, 5908, 6505, 7280, 7385, 8440, 9107, 10408, 10972, 11816, 13010, 13715, 14770, 16880, 16913, 18214, 19201, 20816, 21944, 23632, 26020, 27430, 29540, 33826, 36428, 38402, 43888, 45535, 52040, 54860, 59080, 67652, 72856, 76804, 84565, 91070, 96005, 104080, 109720, 118160, 118391, 135304, 145712, 153608, 169130, 182140, 192010, 219440, 236782, 270608, 274511, 307216, 338260, 364280, 384020, 473564, 549022, 591955, 676520, 728560, 768040, 947128, 1098044, 1183910, 1353040, 1372555, 1536080, 1894256, 1921577, 2196088, 2367820, 2745110, 3568643, 3843154, 4392176, 4735640, 5490220, 7137286, 7686308, 9471280, 9607885, 10980440, 14274572, 15372616, 17843215, 19215770, 21960880, 24980501, 28549144, 30745232, 35686430, 38431540, 49961002, 57098288, 71372860, 76863080, 99922004, 124902505, 142745720, 153726160, 199844008, 249805010, 285491440, 399688016, 499610020, 999220040, 1998440080]

約数ペア:

[(1, 1998440080), (2, 999220040), (4, 499610020), (5, 399688016), (7, 285491440), (8, 249805010), (10, 199844008), (13, 153726160), (14, 142745720), (16, 124902505), (20, 99922004), (26, 76863080), (28, 71372860), (35, 57098288), (40, 49961002), (52, 38431540), (56, 35686430), (65, 30745232), (70, 28549144), (80, 24980501), (91, 21960880), (104, 19215770), (112, 17843215), (130, 15372616), (140, 14274572), (182, 10980440), (208, 9607885), (211, 9471280), (260, 7686308), (280, 7137286), (364, 5490220), (422, 4735640), (455, 4392176), (520, 3843154), (560, 3568643), (728, 2745110), (844, 2367820), (910, 2196088), (1040, 1921577), (1055, 1894256), (1301, 1536080), (1456, 1372555), (1477, 1353040), (1688, 1183910), (1820, 1098044), (2110, 947128), (2602, 768040), (2743, 728560), (2954, 676520), (3376, 591955), (3640, 549022), (4220, 473564), (5204, 384020), (5486, 364280), (5908, 338260), (6505, 307216), (7280, 274511), (7385, 270608), (8440, 236782), (9107, 219440), (10408, 192010), (10972, 182140), (11816, 169130), (13010, 153608), (13715, 145712), (14770, 135304), (16880, 118391), (16913, 118160), (18214, 109720), (19201, 104080), (20816, 96005), (21944, 91070), (23632, 84565), (26020, 76804), (27430, 72856), (29540, 67652), (33826, 59080), (36428, 54860), (38402, 52040), (43888, 45535)]