87451868

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 189221760

約数和(自身を除く): 101769892

約数列:

[1, 2, 4, 7, 14, 28, 31, 37, 49, 62, 74, 98, 124, 148, 196, 217, 259, 389, 434, 518, 778, 868, 1036, 1147, 1519, 1556, 1813, 2294, 2723, 3038, 3626, 4588, 5446, 6076, 7252, 8029, 10892, 12059, 14393, 16058, 19061, 24118, 28786, 32116, 38122, 48236, 56203, 57572, 76244, 84413, 100751, 112406, 168826, 201502, 224812, 337652, 403004, 446183, 590891, 705257, 892366, 1181782, 1410514, 1784732, 2363564, 2821028, 3123281, 6246562, 12493124, 21862967, 43725934, 87451868]

約数ペア:

[(1, 87451868), (2, 43725934), (4, 21862967), (7, 12493124), (14, 6246562), (28, 3123281), (31, 2821028), (37, 2363564), (49, 1784732), (62, 1410514), (74, 1181782), (98, 892366), (124, 705257), (148, 590891), (196, 446183), (217, 403004), (259, 337652), (389, 224812), (434, 201502), (518, 168826), (778, 112406), (868, 100751), (1036, 84413), (1147, 76244), (1519, 57572), (1556, 56203), (1813, 48236), (2294, 38122), (2723, 32116), (3038, 28786), (3626, 24118), (4588, 19061), (5446, 16058), (6076, 14393), (7252, 12059), (8029, 10892)]