19019640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{353}}^1\times {\mathrm{449}}^1$

素因数の和:816

約数の個数: 64

約数和(自身を含む): 57348000

約数和(自身を除く): 38328360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 353, 449, 706, 898, 1059, 1347, 1412, 1765, 1796, 2118, 2245, 2694, 2824, 3530, 3592, 4236, 4490, 5295, 5388, 6735, 7060, 8472, 8980, 10590, 10776, 13470, 14120, 17960, 21180, 26940, 42360, 53880, 158497, 316994, 475491, 633988, 792485, 950982, 1267976, 1584970, 1901964, 2377455, 3169940, 3803928, 4754910, 6339880, 9509820, 19019640]

約数ペア:

[(1, 19019640), (2, 9509820), (3, 6339880), (4, 4754910), (5, 3803928), (6, 3169940), (8, 2377455), (10, 1901964), (12, 1584970), (15, 1267976), (20, 950982), (24, 792485), (30, 633988), (40, 475491), (60, 316994), (120, 158497), (353, 53880), (449, 42360), (706, 26940), (898, 21180), (1059, 17960), (1347, 14120), (1412, 13470), (1765, 10776), (1796, 10590), (2118, 8980), (2245, 8472), (2694, 7060), (2824, 6735), (3530, 5388), (3592, 5295), (4236, 4490)]