161780360

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{1399}}^1$

素因数の和:1483

約数の個数: 96

約数和(自身を含む): 430920000

約数和(自身を除く): 269139640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 59, 70, 98, 118, 140, 196, 236, 245, 280, 295, 392, 413, 472, 490, 590, 826, 980, 1180, 1399, 1652, 1960, 2065, 2360, 2798, 2891, 3304, 4130, 5596, 5782, 6995, 8260, 9793, 11192, 11564, 13990, 14455, 16520, 19586, 23128, 27980, 28910, 39172, 48965, 55960, 57820, 68551, 78344, 82541, 97930, 115640, 137102, 165082, 195860, 274204, 330164, 342755, 391720, 412705, 548408, 577787, 660328, 685510, 825410, 1155574, 1371020, 1650820, 2311148, 2742040, 2888935, 3301640, 4044509, 4622296, 5777870, 8089018, 11555740, 16178036, 20222545, 23111480, 32356072, 40445090, 80890180, 161780360]

約数ペア:

[(1, 161780360), (2, 80890180), (4, 40445090), (5, 32356072), (7, 23111480), (8, 20222545), (10, 16178036), (14, 11555740), (20, 8089018), (28, 5777870), (35, 4622296), (40, 4044509), (49, 3301640), (56, 2888935), (59, 2742040), (70, 2311148), (98, 1650820), (118, 1371020), (140, 1155574), (196, 825410), (236, 685510), (245, 660328), (280, 577787), (295, 548408), (392, 412705), (413, 391720), (472, 342755), (490, 330164), (590, 274204), (826, 195860), (980, 165082), (1180, 137102), (1399, 115640), (1652, 97930), (1960, 82541), (2065, 78344), (2360, 68551), (2798, 57820), (2891, 55960), (3304, 48965), (4130, 39172), (5596, 28910), (5782, 27980), (6995, 23128), (8260, 19586), (9793, 16520), (11192, 14455), (11564, 13990)]