19454320

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 48121920

約数和(自身を除く): 28667600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 97, 109, 115, 184, 194, 218, 230, 368, 388, 436, 460, 485, 545, 776, 872, 920, 970, 1090, 1552, 1744, 1840, 1940, 2180, 2231, 2507, 3880, 4360, 4462, 5014, 7760, 8720, 8924, 10028, 10573, 11155, 12535, 17848, 20056, 21146, 22310, 25070, 35696, 40112, 42292, 44620, 50140, 52865, 84584, 89240, 100280, 105730, 169168, 178480, 200560, 211460, 243179, 422920, 486358, 845840, 972716, 1215895, 1945432, 2431790, 3890864, 4863580, 9727160, 19454320]

約数ペア:

[(1, 19454320), (2, 9727160), (4, 4863580), (5, 3890864), (8, 2431790), (10, 1945432), (16, 1215895), (20, 972716), (23, 845840), (40, 486358), (46, 422920), (80, 243179), (92, 211460), (97, 200560), (109, 178480), (115, 169168), (184, 105730), (194, 100280), (218, 89240), (230, 84584), (368, 52865), (388, 50140), (436, 44620), (460, 42292), (485, 40112), (545, 35696), (776, 25070), (872, 22310), (920, 21146), (970, 20056), (1090, 17848), (1552, 12535), (1744, 11155), (1840, 10573), (1940, 10028), (2180, 8924), (2231, 8720), (2507, 7760), (3880, 5014), (4360, 4462)]