20121556616

素因数分解:

$2^3\times 7^1\times {\mathrm{97}}^1\times {\mathrm{373}}^1\times {\mathrm{9931}}^1$

素因数の和:10414

約数の個数: 64

約数和(自身を含む): 43683319680

約数和(自身を除く): 23561763064

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 97, 194, 373, 388, 679, 746, 776, 1358, 1492, 2611, 2716, 2984, 5222, 5432, 9931, 10444, 19862, 20888, 36181, 39724, 69517, 72362, 79448, 139034, 144724, 253267, 278068, 289448, 506534, 556136, 963307, 1013068, 1926614, 2026136, 3704263, 3853228, 6743149, 7408526, 7706456, 13486298, 14817052, 25929841, 26972596, 29634104, 51859682, 53945192, 103719364, 207438728, 359313511, 718627022, 1437254044, 2515194577, 2874508088, 5030389154, 10060778308, 20121556616]

約数ペア:

[(1, 20121556616), (2, 10060778308), (4, 5030389154), (7, 2874508088), (8, 2515194577), (14, 1437254044), (28, 718627022), (56, 359313511), (97, 207438728), (194, 103719364), (373, 53945192), (388, 51859682), (679, 29634104), (746, 26972596), (776, 25929841), (1358, 14817052), (1492, 13486298), (2611, 7706456), (2716, 7408526), (2984, 6743149), (5222, 3853228), (5432, 3704263), (9931, 2026136), (10444, 1926614), (19862, 1013068), (20888, 963307), (36181, 556136), (39724, 506534), (69517, 289448), (72362, 278068), (79448, 253267), (139034, 144724)]