19852400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1601}}^1$

素因数の和:1650

約数の個数: 60

約数和(自身を含む): 49264704

約数和(自身を除く): 29412304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 1601, 2480, 3100, 3202, 6200, 6404, 8005, 12400, 12808, 16010, 25616, 32020, 40025, 49631, 64040, 80050, 99262, 128080, 160100, 198524, 248155, 320200, 397048, 496310, 640400, 794096, 992620, 1240775, 1985240, 2481550, 3970480, 4963100, 9926200, 19852400]

約数ペア:

[(1, 19852400), (2, 9926200), (4, 4963100), (5, 3970480), (8, 2481550), (10, 1985240), (16, 1240775), (20, 992620), (25, 794096), (31, 640400), (40, 496310), (50, 397048), (62, 320200), (80, 248155), (100, 198524), (124, 160100), (155, 128080), (200, 99262), (248, 80050), (310, 64040), (400, 49631), (496, 40025), (620, 32020), (775, 25616), (1240, 16010), (1550, 12808), (1601, 12400), (2480, 8005), (3100, 6404), (3202, 6200)]