12642980

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:146

約数の個数: 96

約数和(自身を含む): 32928000

約数和(自身を除く): 20285020

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 97, 98, 133, 140, 190, 194, 196, 245, 266, 343, 380, 388, 485, 490, 532, 665, 679, 686, 931, 970, 980, 1330, 1358, 1372, 1715, 1843, 1862, 1940, 2660, 2716, 3395, 3430, 3686, 3724, 4655, 4753, 6517, 6790, 6860, 7372, 9215, 9310, 9506, 12901, 13034, 13580, 18430, 18620, 19012, 23765, 25802, 26068, 32585, 33271, 36860, 47530, 51604, 64505, 65170, 66542, 90307, 95060, 129010, 130340, 133084, 166355, 180614, 258020, 332710, 361228, 451535, 632149, 665420, 903070, 1264298, 1806140, 2528596, 3160745, 6321490, 12642980]

約数ペア:

[(1, 12642980), (2, 6321490), (4, 3160745), (5, 2528596), (7, 1806140), (10, 1264298), (14, 903070), (19, 665420), (20, 632149), (28, 451535), (35, 361228), (38, 332710), (49, 258020), (70, 180614), (76, 166355), (95, 133084), (97, 130340), (98, 129010), (133, 95060), (140, 90307), (190, 66542), (194, 65170), (196, 64505), (245, 51604), (266, 47530), (343, 36860), (380, 33271), (388, 32585), (485, 26068), (490, 25802), (532, 23765), (665, 19012), (679, 18620), (686, 18430), (931, 13580), (970, 13034), (980, 12901), (1330, 9506), (1358, 9310), (1372, 9215), (1715, 7372), (1843, 6860), (1862, 6790), (1940, 6517), (2660, 4753), (2716, 4655), (3395, 3724), (3430, 3686)]