20179947425

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{191}}^1\times {\mathrm{659}}^1$

素因数の和:935

約数の個数: 72

約数和(自身を含む): 28213194240

約数和(自身を除く): 8033246815

約数列:

[1, 5, 11, 25, 53, 55, 121, 191, 265, 275, 583, 605, 659, 955, 1325, 2101, 2915, 3025, 3295, 4775, 6413, 7249, 10123, 10505, 14575, 16475, 23111, 32065, 34927, 36245, 50615, 52525, 79739, 111353, 115555, 125869, 160325, 174635, 181225, 253075, 384197, 398695, 556765, 577775, 629345, 873175, 1224883, 1384559, 1920985, 1993475, 2783825, 3146725, 4226167, 6124415, 6671057, 6922795, 9604925, 15230149, 21130835, 30622075, 33355285, 34613975, 73381627, 76150745, 105654175, 166776425, 366908135, 380753725, 807197897, 1834540675, 4035989485, 20179947425]

約数ペア:

[(1, 20179947425), (5, 4035989485), (11, 1834540675), (25, 807197897), (53, 380753725), (55, 366908135), (121, 166776425), (191, 105654175), (265, 76150745), (275, 73381627), (583, 34613975), (605, 33355285), (659, 30622075), (955, 21130835), (1325, 15230149), (2101, 9604925), (2915, 6922795), (3025, 6671057), (3295, 6124415), (4775, 4226167), (6413, 3146725), (7249, 2783825), (10123, 1993475), (10505, 1920985), (14575, 1384559), (16475, 1224883), (23111, 873175), (32065, 629345), (34927, 577775), (36245, 556765), (50615, 398695), (52525, 384197), (79739, 253075), (111353, 181225), (115555, 174635), (125869, 160325)]