25104780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{661}}^1$

素因数の和:887

約数の個数: 72

約数和(自身を含む): 76627824

約数和(自身を除く): 51523044

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 633, 661, 844, 1055, 1266, 1322, 1899, 1983, 2110, 2532, 2644, 3165, 3305, 3798, 3966, 4220, 5949, 6330, 6610, 7596, 7932, 9495, 9915, 11898, 12660, 13220, 18990, 19830, 23796, 29745, 37980, 39660, 59490, 118980, 139471, 278942, 418413, 557884, 697355, 836826, 1255239, 1394710, 1673652, 2092065, 2510478, 2789420, 4184130, 5020956, 6276195, 8368260, 12552390, 25104780]

約数ペア:

[(1, 25104780), (2, 12552390), (3, 8368260), (4, 6276195), (5, 5020956), (6, 4184130), (9, 2789420), (10, 2510478), (12, 2092065), (15, 1673652), (18, 1394710), (20, 1255239), (30, 836826), (36, 697355), (45, 557884), (60, 418413), (90, 278942), (180, 139471), (211, 118980), (422, 59490), (633, 39660), (661, 37980), (844, 29745), (1055, 23796), (1266, 19830), (1322, 18990), (1899, 13220), (1983, 12660), (2110, 11898), (2532, 9915), (2644, 9495), (3165, 7932), (3305, 7596), (3798, 6610), (3966, 6330), (4220, 5949)]