18887330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1291}}^1$

素因数の和:1335

約数の個数: 64

約数和(自身を含む): 44651520

約数和(自身を除く): 25764190

約数列:

[1, 2, 5, 7, 10, 11, 14, 19, 22, 35, 38, 55, 70, 77, 95, 110, 133, 154, 190, 209, 266, 385, 418, 665, 770, 1045, 1291, 1330, 1463, 2090, 2582, 2926, 6455, 7315, 9037, 12910, 14201, 14630, 18074, 24529, 28402, 45185, 49058, 71005, 90370, 99407, 122645, 142010, 171703, 198814, 245290, 269819, 343406, 497035, 539638, 858515, 994070, 1349095, 1717030, 1888733, 2698190, 3777466, 9443665, 18887330]

約数ペア:

[(1, 18887330), (2, 9443665), (5, 3777466), (7, 2698190), (10, 1888733), (11, 1717030), (14, 1349095), (19, 994070), (22, 858515), (35, 539638), (38, 497035), (55, 343406), (70, 269819), (77, 245290), (95, 198814), (110, 171703), (133, 142010), (154, 122645), (190, 99407), (209, 90370), (266, 71005), (385, 49058), (418, 45185), (665, 28402), (770, 24529), (1045, 18074), (1291, 14630), (1330, 14201), (1463, 12910), (2090, 9037), (2582, 7315), (2926, 6455)]