213409075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 308551680

約数和(自身を除く): 95142605

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 191, 239, 275, 425, 935, 955, 1195, 2101, 2629, 3247, 4063, 4675, 4775, 5975, 10505, 13145, 16235, 20315, 35717, 44693, 45649, 52525, 65725, 81175, 101575, 178585, 223465, 228245, 502139, 776033, 892925, 1117325, 1141225, 2510695, 3880165, 8536363, 12553475, 19400825, 42681815, 213409075]

約数ペア:

[(1, 213409075), (5, 42681815), (11, 19400825), (17, 12553475), (25, 8536363), (55, 3880165), (85, 2510695), (187, 1141225), (191, 1117325), (239, 892925), (275, 776033), (425, 502139), (935, 228245), (955, 223465), (1195, 178585), (2101, 101575), (2629, 81175), (3247, 65725), (4063, 52525), (4675, 45649), (4775, 44693), (5975, 35717), (10505, 20315), (13145, 16235)]