20547180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{541}}^1$

素因数の和:767

約数の個数: 72

約数和(自身を含む): 62737584

約数和(自身を除く): 42190404

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 541, 633, 844, 1055, 1082, 1266, 1623, 1899, 2110, 2164, 2532, 2705, 3165, 3246, 3798, 4220, 4869, 5410, 6330, 6492, 7596, 8115, 9495, 9738, 10820, 12660, 16230, 18990, 19476, 24345, 32460, 37980, 48690, 97380, 114151, 228302, 342453, 456604, 570755, 684906, 1027359, 1141510, 1369812, 1712265, 2054718, 2283020, 3424530, 4109436, 5136795, 6849060, 10273590, 20547180]

約数ペア:

[(1, 20547180), (2, 10273590), (3, 6849060), (4, 5136795), (5, 4109436), (6, 3424530), (9, 2283020), (10, 2054718), (12, 1712265), (15, 1369812), (18, 1141510), (20, 1027359), (30, 684906), (36, 570755), (45, 456604), (60, 342453), (90, 228302), (180, 114151), (211, 97380), (422, 48690), (541, 37980), (633, 32460), (844, 24345), (1055, 19476), (1082, 18990), (1266, 16230), (1623, 12660), (1899, 10820), (2110, 9738), (2164, 9495), (2532, 8115), (2705, 7596), (3165, 6492), (3246, 6330), (3798, 5410), (4220, 4869)]