398990450

素因数分解:

$2^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{211}}^1\times {\mathrm{641}}^1$

素因数の和:923

約数の個数: 48

約数和(自身を含む): 759460320

約数和(自身を除く): 360469870

約数列:

[1, 2, 5, 10, 25, 50, 59, 118, 211, 295, 422, 590, 641, 1055, 1282, 1475, 2110, 2950, 3205, 5275, 6410, 10550, 12449, 16025, 24898, 32050, 37819, 62245, 75638, 124490, 135251, 189095, 270502, 311225, 378190, 622450, 676255, 945475, 1352510, 1890950, 3381275, 6762550, 7979809, 15959618, 39899045, 79798090, 199495225, 398990450]

約数ペア:

[(1, 398990450), (2, 199495225), (5, 79798090), (10, 39899045), (25, 15959618), (50, 7979809), (59, 6762550), (118, 3381275), (211, 1890950), (295, 1352510), (422, 945475), (590, 676255), (641, 622450), (1055, 378190), (1282, 311225), (1475, 270502), (2110, 189095), (2950, 135251), (3205, 124490), (5275, 75638), (6410, 62245), (10550, 37819), (12449, 32050), (16025, 24898)]