2168920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:164

約数の個数: 64

約数和(自身を含む): 5433120

約数和(自身を除く): 3264200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 97, 104, 130, 172, 194, 215, 260, 344, 388, 430, 485, 520, 559, 776, 860, 970, 1118, 1261, 1720, 1940, 2236, 2522, 2795, 3880, 4171, 4472, 5044, 5590, 6305, 8342, 10088, 11180, 12610, 16684, 20855, 22360, 25220, 33368, 41710, 50440, 54223, 83420, 108446, 166840, 216892, 271115, 433784, 542230, 1084460, 2168920]

約数ペア:

[(1, 2168920), (2, 1084460), (4, 542230), (5, 433784), (8, 271115), (10, 216892), (13, 166840), (20, 108446), (26, 83420), (40, 54223), (43, 50440), (52, 41710), (65, 33368), (86, 25220), (97, 22360), (104, 20855), (130, 16684), (172, 12610), (194, 11180), (215, 10088), (260, 8342), (344, 6305), (388, 5590), (430, 5044), (485, 4472), (520, 4171), (559, 3880), (776, 2795), (860, 2522), (970, 2236), (1118, 1940), (1261, 1720)]