840520520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{4421}}^1$

素因数の和:4543

約数の個数: 96

約数和(自身を含む): 2223116280

約数和(自身を除く): 1382595760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 97, 98, 140, 194, 196, 245, 280, 388, 392, 485, 490, 679, 776, 970, 980, 1358, 1940, 1960, 2716, 3395, 3880, 4421, 4753, 5432, 6790, 8842, 9506, 13580, 17684, 19012, 22105, 23765, 27160, 30947, 35368, 38024, 44210, 47530, 61894, 88420, 95060, 123788, 154735, 176840, 190120, 216629, 247576, 309470, 428837, 433258, 618940, 857674, 866516, 1083145, 1237880, 1715348, 1733032, 2144185, 2166290, 3001859, 3430696, 4288370, 4332580, 6003718, 8576740, 8665160, 12007436, 15009295, 17153480, 21013013, 24014872, 30018590, 42026026, 60037180, 84052052, 105065065, 120074360, 168104104, 210130130, 420260260, 840520520]

約数ペア:

[(1, 840520520), (2, 420260260), (4, 210130130), (5, 168104104), (7, 120074360), (8, 105065065), (10, 84052052), (14, 60037180), (20, 42026026), (28, 30018590), (35, 24014872), (40, 21013013), (49, 17153480), (56, 15009295), (70, 12007436), (97, 8665160), (98, 8576740), (140, 6003718), (194, 4332580), (196, 4288370), (245, 3430696), (280, 3001859), (388, 2166290), (392, 2144185), (485, 1733032), (490, 1715348), (679, 1237880), (776, 1083145), (970, 866516), (980, 857674), (1358, 618940), (1940, 433258), (1960, 428837), (2716, 309470), (3395, 247576), (3880, 216629), (4421, 190120), (4753, 176840), (5432, 154735), (6790, 123788), (8842, 95060), (9506, 88420), (13580, 61894), (17684, 47530), (19012, 44210), (22105, 38024), (23765, 35368), (27160, 30947)]