280199920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3499}}^1$

素因数の和:3543

約数の個数: 160

約数和(自身を含む): 874944000

約数和(自身を除く): 594744080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 130, 140, 143, 154, 176, 182, 208, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 560, 572, 616, 715, 728, 770, 880, 910, 1001, 1040, 1144, 1232, 1430, 1456, 1540, 1820, 2002, 2288, 2860, 3080, 3499, 3640, 4004, 5005, 5720, 6160, 6998, 7280, 8008, 10010, 11440, 13996, 16016, 17495, 20020, 24493, 27992, 34990, 38489, 40040, 45487, 48986, 55984, 69980, 76978, 80080, 90974, 97972, 122465, 139960, 153956, 181948, 192445, 195944, 227435, 244930, 269423, 279920, 307912, 318409, 363896, 384890, 391888, 454870, 489860, 500357, 538846, 615824, 636818, 727792, 769780, 909740, 979720, 1000714, 1077692, 1273636, 1347115, 1539560, 1592045, 1819480, 1959440, 2001428, 2155384, 2501785, 2547272, 2694230, 3079120, 3184090, 3502499, 3638960, 4002856, 4310768, 5003570, 5094544, 5388460, 6368180, 7004998, 8005712, 10007140, 10776920, 12736360, 14009996, 17512495, 20014280, 21553840, 25472720, 28019992, 35024990, 40028560, 56039984, 70049980, 140099960, 280199920]

約数ペア:

[(1, 280199920), (2, 140099960), (4, 70049980), (5, 56039984), (7, 40028560), (8, 35024990), (10, 28019992), (11, 25472720), (13, 21553840), (14, 20014280), (16, 17512495), (20, 14009996), (22, 12736360), (26, 10776920), (28, 10007140), (35, 8005712), (40, 7004998), (44, 6368180), (52, 5388460), (55, 5094544), (56, 5003570), (65, 4310768), (70, 4002856), (77, 3638960), (80, 3502499), (88, 3184090), (91, 3079120), (104, 2694230), (110, 2547272), (112, 2501785), (130, 2155384), (140, 2001428), (143, 1959440), (154, 1819480), (176, 1592045), (182, 1539560), (208, 1347115), (220, 1273636), (260, 1077692), (280, 1000714), (286, 979720), (308, 909740), (364, 769780), (385, 727792), (440, 636818), (455, 615824), (520, 538846), (560, 500357), (572, 489860), (616, 454870), (715, 391888), (728, 384890), (770, 363896), (880, 318409), (910, 307912), (1001, 279920), (1040, 269423), (1144, 244930), (1232, 227435), (1430, 195944), (1456, 192445), (1540, 181948), (1820, 153956), (2002, 139960), (2288, 122465), (2860, 97972), (3080, 90974), (3499, 80080), (3640, 76978), (4004, 69980), (5005, 55984), (5720, 48986), (6160, 45487), (6998, 40040), (7280, 38489), (8008, 34990), (10010, 27992), (11440, 24493), (13996, 20020), (16016, 17495)]