20123280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1471}}^1$

素因数の和:1509

約数の個数: 120

約数和(自身を含む): 71185920

約数和(自身を除く): 51062640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1471, 1520, 1710, 2280, 2736, 2942, 3420, 4413, 4560, 5884, 6840, 7355, 8826, 11768, 13239, 13680, 14710, 17652, 22065, 23536, 26478, 27949, 29420, 35304, 44130, 52956, 55898, 58840, 66195, 70608, 83847, 88260, 105912, 111796, 117680, 132390, 139745, 167694, 176520, 211824, 223592, 251541, 264780, 279490, 335388, 353040, 419235, 447184, 503082, 529560, 558980, 670776, 838470, 1006164, 1059120, 1117960, 1257705, 1341552, 1676940, 2012328, 2235920, 2515410, 3353880, 4024656, 5030820, 6707760, 10061640, 20123280]

約数ペア:

[(1, 20123280), (2, 10061640), (3, 6707760), (4, 5030820), (5, 4024656), (6, 3353880), (8, 2515410), (9, 2235920), (10, 2012328), (12, 1676940), (15, 1341552), (16, 1257705), (18, 1117960), (19, 1059120), (20, 1006164), (24, 838470), (30, 670776), (36, 558980), (38, 529560), (40, 503082), (45, 447184), (48, 419235), (57, 353040), (60, 335388), (72, 279490), (76, 264780), (80, 251541), (90, 223592), (95, 211824), (114, 176520), (120, 167694), (144, 139745), (152, 132390), (171, 117680), (180, 111796), (190, 105912), (228, 88260), (240, 83847), (285, 70608), (304, 66195), (342, 58840), (360, 55898), (380, 52956), (456, 44130), (570, 35304), (684, 29420), (720, 27949), (760, 26478), (855, 23536), (912, 22065), (1140, 17652), (1368, 14710), (1471, 13680), (1520, 13239), (1710, 11768), (2280, 8826), (2736, 7355), (2942, 6840), (3420, 5884), (4413, 4560)]