18435820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:179

約数の個数: 96

約数和(自身を含む): 45638208

約数和(自身を除く): 27202388

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 43, 52, 65, 68, 85, 86, 97, 130, 170, 172, 194, 215, 221, 260, 340, 388, 430, 442, 485, 559, 731, 860, 884, 970, 1105, 1118, 1261, 1462, 1649, 1940, 2210, 2236, 2522, 2795, 2924, 3298, 3655, 4171, 4420, 5044, 5590, 6305, 6596, 7310, 8245, 8342, 9503, 11180, 12610, 14620, 16490, 16684, 19006, 20855, 21437, 25220, 32980, 38012, 41710, 42874, 47515, 54223, 70907, 83420, 85748, 95030, 107185, 108446, 141814, 190060, 214370, 216892, 271115, 283628, 354535, 428740, 542230, 709070, 921791, 1084460, 1418140, 1843582, 3687164, 4608955, 9217910, 18435820]

約数ペア:

[(1, 18435820), (2, 9217910), (4, 4608955), (5, 3687164), (10, 1843582), (13, 1418140), (17, 1084460), (20, 921791), (26, 709070), (34, 542230), (43, 428740), (52, 354535), (65, 283628), (68, 271115), (85, 216892), (86, 214370), (97, 190060), (130, 141814), (170, 108446), (172, 107185), (194, 95030), (215, 85748), (221, 83420), (260, 70907), (340, 54223), (388, 47515), (430, 42874), (442, 41710), (485, 38012), (559, 32980), (731, 25220), (860, 21437), (884, 20855), (970, 19006), (1105, 16684), (1118, 16490), (1261, 14620), (1462, 12610), (1649, 11180), (1940, 9503), (2210, 8342), (2236, 8245), (2522, 7310), (2795, 6596), (2924, 6305), (3298, 5590), (3655, 5044), (4171, 4420)]