291711980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{21481}}^1$

素因数の和:21594

約数の個数: 48

約数和(自身を含む): 707359296

約数和(自身を除く): 415647316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1940, 2716, 3395, 6790, 13580, 21481, 42962, 85924, 107405, 150367, 214810, 300734, 429620, 601468, 751835, 1503670, 2083657, 3007340, 4167314, 8334628, 10418285, 14585599, 20836570, 29171198, 41673140, 58342396, 72927995, 145855990, 291711980]

約数ペア:

[(1, 291711980), (2, 145855990), (4, 72927995), (5, 58342396), (7, 41673140), (10, 29171198), (14, 20836570), (20, 14585599), (28, 10418285), (35, 8334628), (70, 4167314), (97, 3007340), (140, 2083657), (194, 1503670), (388, 751835), (485, 601468), (679, 429620), (970, 300734), (1358, 214810), (1940, 150367), (2716, 107405), (3395, 85924), (6790, 42962), (13580, 21481)]