17921940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:309

約数の個数: 96

約数和(自身を含む): 53760000

約数和(自身を除く): 35838060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 79, 95, 114, 158, 190, 199, 228, 237, 285, 316, 380, 395, 398, 474, 570, 597, 790, 796, 948, 995, 1140, 1185, 1194, 1501, 1580, 1990, 2370, 2388, 2985, 3002, 3781, 3980, 4503, 4740, 5970, 6004, 7505, 7562, 9006, 11343, 11940, 15010, 15124, 15721, 18012, 18905, 22515, 22686, 30020, 31442, 37810, 45030, 45372, 47163, 56715, 62884, 75620, 78605, 90060, 94326, 113430, 157210, 188652, 226860, 235815, 298699, 314420, 471630, 597398, 896097, 943260, 1194796, 1493495, 1792194, 2986990, 3584388, 4480485, 5973980, 8960970, 17921940]

約数ペア:

[(1, 17921940), (2, 8960970), (3, 5973980), (4, 4480485), (5, 3584388), (6, 2986990), (10, 1792194), (12, 1493495), (15, 1194796), (19, 943260), (20, 896097), (30, 597398), (38, 471630), (57, 314420), (60, 298699), (76, 235815), (79, 226860), (95, 188652), (114, 157210), (158, 113430), (190, 94326), (199, 90060), (228, 78605), (237, 75620), (285, 62884), (316, 56715), (380, 47163), (395, 45372), (398, 45030), (474, 37810), (570, 31442), (597, 30020), (790, 22686), (796, 22515), (948, 18905), (995, 18012), (1140, 15721), (1185, 15124), (1194, 15010), (1501, 11940), (1580, 11343), (1990, 9006), (2370, 7562), (2388, 7505), (2985, 6004), (3002, 5970), (3781, 4740), (3980, 4503)]