20010306540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{491171}}^1$

素因数の和:491287

約数の個数: 96

約数和(自身を含む): 64693246464

約数和(自身を除く): 44682939924

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 97, 105, 140, 194, 210, 291, 388, 420, 485, 582, 679, 970, 1164, 1358, 1455, 1940, 2037, 2716, 2910, 3395, 4074, 5820, 6790, 8148, 10185, 13580, 20370, 40740, 491171, 982342, 1473513, 1964684, 2455855, 2947026, 3438197, 4911710, 5894052, 6876394, 7367565, 9823420, 10314591, 13752788, 14735130, 17190985, 20629182, 29470260, 34381970, 41258364, 47643587, 51572955, 68763940, 95287174, 103145910, 142930761, 190574348, 206291820, 238217935, 285861522, 333505109, 476435870, 571723044, 667010218, 714653805, 952871740, 1000515327, 1334020436, 1429307610, 1667525545, 2001030654, 2858615220, 3335051090, 4002061308, 5002576635, 6670102180, 10005153270, 20010306540]

約数ペア:

[(1, 20010306540), (2, 10005153270), (3, 6670102180), (4, 5002576635), (5, 4002061308), (6, 3335051090), (7, 2858615220), (10, 2001030654), (12, 1667525545), (14, 1429307610), (15, 1334020436), (20, 1000515327), (21, 952871740), (28, 714653805), (30, 667010218), (35, 571723044), (42, 476435870), (60, 333505109), (70, 285861522), (84, 238217935), (97, 206291820), (105, 190574348), (140, 142930761), (194, 103145910), (210, 95287174), (291, 68763940), (388, 51572955), (420, 47643587), (485, 41258364), (582, 34381970), (679, 29470260), (970, 20629182), (1164, 17190985), (1358, 14735130), (1455, 13752788), (1940, 10314591), (2037, 9823420), (2716, 7367565), (2910, 6876394), (3395, 5894052), (4074, 4911710), (5820, 3438197), (6790, 2947026), (8148, 2455855), (10185, 1964684), (13580, 1473513), (20370, 982342), (40740, 491171)]