20845584

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^2\times {\mathrm{401}}^1$

素因数の和:453

約数の個数: 90

約数和(自身を含む): 61724286

約数和(自身を除く): 40878702

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 152, 171, 228, 304, 342, 361, 401, 456, 684, 722, 802, 912, 1083, 1203, 1368, 1444, 1604, 2166, 2406, 2736, 2888, 3208, 3249, 3609, 4332, 4812, 5776, 6416, 6498, 7218, 7619, 8664, 9624, 12996, 14436, 15238, 17328, 19248, 22857, 25992, 28872, 30476, 45714, 51984, 57744, 60952, 68571, 91428, 121904, 137142, 144761, 182856, 274284, 289522, 365712, 434283, 548568, 579044, 868566, 1097136, 1158088, 1302849, 1737132, 2316176, 2605698, 3474264, 5211396, 6948528, 10422792, 20845584]

約数ペア:

[(1, 20845584), (2, 10422792), (3, 6948528), (4, 5211396), (6, 3474264), (8, 2605698), (9, 2316176), (12, 1737132), (16, 1302849), (18, 1158088), (19, 1097136), (24, 868566), (36, 579044), (38, 548568), (48, 434283), (57, 365712), (72, 289522), (76, 274284), (114, 182856), (144, 144761), (152, 137142), (171, 121904), (228, 91428), (304, 68571), (342, 60952), (361, 57744), (401, 51984), (456, 45714), (684, 30476), (722, 28872), (802, 25992), (912, 22857), (1083, 19248), (1203, 17328), (1368, 15238), (1444, 14436), (1604, 12996), (2166, 9624), (2406, 8664), (2736, 7619), (2888, 7218), (3208, 6498), (3249, 6416), (3609, 5776), (4332, 4812)]