20118121812

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{971}}^1\times {\mathrm{10859}}^1$

素因数の和:11893

約数の個数: 72

約数和(自身を含む): 51871790880

約数和(自身を除く): 31753669068

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 159, 212, 318, 477, 636, 954, 971, 1908, 1942, 2913, 3884, 5826, 8739, 10859, 11652, 17478, 21718, 32577, 34956, 43436, 51463, 65154, 97731, 102926, 130308, 154389, 195462, 205852, 308778, 390924, 463167, 575527, 617556, 926334, 1151054, 1726581, 1852668, 2302108, 3453162, 5179743, 6906324, 10359486, 10544089, 20718972, 21088178, 31632267, 42176356, 63264534, 94896801, 126529068, 189793602, 379587204, 558836717, 1117673434, 1676510151, 2235346868, 3353020302, 5029530453, 6706040604, 10059060906, 20118121812]

約数ペア:

[(1, 20118121812), (2, 10059060906), (3, 6706040604), (4, 5029530453), (6, 3353020302), (9, 2235346868), (12, 1676510151), (18, 1117673434), (36, 558836717), (53, 379587204), (106, 189793602), (159, 126529068), (212, 94896801), (318, 63264534), (477, 42176356), (636, 31632267), (954, 21088178), (971, 20718972), (1908, 10544089), (1942, 10359486), (2913, 6906324), (3884, 5179743), (5826, 3453162), (8739, 2302108), (10859, 1852668), (11652, 1726581), (17478, 1151054), (21718, 926334), (32577, 617556), (34956, 575527), (43436, 463167), (51463, 390924), (65154, 308778), (97731, 205852), (102926, 195462), (130308, 154389)]