17920336

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^2$

素因数の和:180

約数の個数: 60

約数和(自身を含む): 41280096

約数和(自身を除く): 23359760

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 61, 86, 112, 122, 172, 244, 301, 344, 427, 488, 602, 688, 854, 976, 1204, 1708, 2408, 2623, 3416, 3721, 4816, 5246, 6832, 7442, 10492, 14884, 18361, 20984, 26047, 29768, 36722, 41968, 52094, 59536, 73444, 104188, 146888, 160003, 208376, 293776, 320006, 416752, 640012, 1120021, 1280024, 2240042, 2560048, 4480084, 8960168, 17920336]

約数ペア:

[(1, 17920336), (2, 8960168), (4, 4480084), (7, 2560048), (8, 2240042), (14, 1280024), (16, 1120021), (28, 640012), (43, 416752), (56, 320006), (61, 293776), (86, 208376), (112, 160003), (122, 146888), (172, 104188), (244, 73444), (301, 59536), (344, 52094), (427, 41968), (488, 36722), (602, 29768), (688, 26047), (854, 20984), (976, 18361), (1204, 14884), (1708, 10492), (2408, 7442), (2623, 6832), (3416, 5246), (3721, 4816)]